New tank with low Mg & Ca?

[David Hillyard]

I have 1110 Mg & 350 Ca in a new tank. Can anyone shed any light on this
for me?

I have drained and cleaned a 240l planted freshwater tank thoroughly with
tap water. Left it to stand and dry for a few weeks in the garage and then
started to set it up as a marine system.

I filled it with (known good) RO water and added Tropic Marin Pro Reef to an
SG of 1.023 (a little low I know). I have allowed this to mix thoroughly
and age for 3 days and was about to add live rock but tested the water
first.

To my dismay the Magnesium and Calcium are much lower than I would expect.
The tank is completely bare except for 3 powerheads, protein skimmer, carbon
& rowaphos in an external filter and the heaterstat. Does anyone have an
explanation for this? The salt has been tested by my lfs and it seems OK.

If I do a 50% water change would this help?

David

[David Hillyard]

By the way, KH is 5, pH is 8.2, Nitrate is 10?! (there is nothing dying off
in the tank, its bare)
I didn't do anything to the RO before I added the salt other than aerate it
for 24 hours as I understand the Tropic Marin should buffer it OK.

Also, I would like to increase the SG to 1.025 as I'm sure this would also
help. What's the best way to calculate how much extra salt should be added
to the water?
---


"David Hillyard" > wrote in message
...
>I have 1110 Mg & 350 Ca in a new tank. Can anyone shed any light on this
>for me?
>
> I have drained and cleaned a 240l planted freshwater tank thoroughly with
> tap water. Left it to stand and dry for a few weeks in the garage and
> then started to set it up as a marine system.
>
> I filled it with (known good) RO water and added Tropic Marin Pro Reef to
> an SG of 1.023 (a little low I know). I have allowed this to mix
> thoroughly and age for 3 days and was about to add live rock but tested
> the water first.
>
> To my dismay the Magnesium and Calcium are much lower than I would expect.
> The tank is completely bare except for 3 powerheads, protein skimmer,
> carbon & rowaphos in an external filter and the heaterstat. Does anyone
> have an explanation for this? The salt has been tested by my lfs and it
> seems OK.
>
> If I do a 50% water change would this help?
>
> David
>

[GrimReaper]

I do this to calculate the amount of salt to add to increase the SG by 0.0x

Desired SG = 1.25 SG (About 34 Parts Per Thousand)
Current SG = 1.023 (About 31 Parts Per Thousand)

Difference = 3 ppt

Volume of water in tank = Say 200L (You will need to know this)

Therefore each litre of tank water needs 3 gms more (Difference)
so 3 gms x 200 Litres = 600 gms

That's it

GrimReaper

[David Hillyard]

Thanks for the advice. I have now added the extra salt and the SG is up to
1.025.
Ca is now 375, Mg 1170.

My lfs tested a small amount of my salt in RO in case I had a bad batch but
the Ca and Mg readings were a lot higher for him. The test kits I'm using
are brand new and not contaminated. LFS has confirmed my low readings are
accurate.

Having done a little research on the web it seems others have had a similar
experience. I have no substrate at this stage but my lfs doesn't think that
would make any difference anyway.

Would it be a mistake to add live rock with low readings and would it be OK
to add magnesium to bring the levels up or would this cause more problems
later?

Any help is greatfully received, so thanks to GrimReaper.

---

"GrimReaper" > wrote in message
...
>I do this to calculate the amount of salt to add to increase the SG by
>0.0x
>
> Desired SG = 1.25 SG (About 34 Parts Per Thousand)
> Current SG = 1.023 (About 31 Parts Per Thousand)
>
> Difference = 3 ppt
>
> Volume of water in tank = Say 200L (You will need to know this)
>
> Therefore each litre of tank water needs 3 gms more (Difference)
> so 3 gms x 200 Litres = 600 gms
>
> That's it
>
> GrimReaper

[GrimReaper]

David
I'm not a "Reef" tank expert as such but I would imagine that live rock
would be similar to adding any live animal. You must equalise their
conditions slowly


Regards
GrinReaper

[GrimReaper]

Meant to add
This Forum has massive info on Reef Tanks /Chemistry etc

http://www.reefcentral.com/

You have to register to post but there a lot of section on many aspects of
Reef Keeping including chemistry


Regards
GrimReaper

[kim gross]

David Hillyard wrote:
> Thanks for the advice. I have now added the extra salt and the SG is up to
> 1.025.
> Ca is now 375, Mg 1170.
>
> My lfs tested a small amount of my salt in RO in case I had a bad batch but
> the Ca and Mg readings were a lot higher for him. The test kits I'm using
> are brand new and not contaminated. LFS has confirmed my low readings are
> accurate.
>
> Having done a little research on the web it seems others have had a similar
> experience. I have no substrate at this stage but my lfs doesn't think that
> would make any difference anyway.
>
> Would it be a mistake to add live rock with low readings and would it be OK
> to add magnesium to bring the levels up or would this cause more problems
> later?
>
> Any help is greatfully received, so thanks to GrimReaper.


Just so you know those values are a little low but they are in the safe
range. You can add your liverock without any problems. It is actually
not uncommon for freshly mixed sal****er to be low. You could add a
little bit of epsom salt to the tank to bring up the mag a little, but I
would not worry about it if it was my tank. Once you start dosing your
calcium/alk suppliments you will bring your Ca in line.

Kim
www.jensalt.com

[GrimReaper]

Hi Dave
A bit bored today so I created a single web page calculator to do these
sums. You can enter various SG's and tank volumes.
You can save it to your computer and use as and when


I have put it here

http://www.site266082.fsnet.co.uk/

The password to get in is "saltsums" without the quotes. Its good for ten
days

If you can't get in and want it just ask and I will e-mail it to you


Regards
Grimeaper

[David Hillyard]

Thanks GrimReaper. I've saved your calculator - very useful for a newbie.

On advice of lfs I am doing a 50% water change today to try and raise Ca &
Mg levels but will probably stop worrying too much if it is normal to have
lower readings initially.

Thanks Kim.

"GrimReaper" > wrote in message
...
> Hi Dave
> A bit bored today so I created a single web page calculator to do these
> sums. You can enter various SG's and tank volumes.
> You can save it to your computer and use as and when
>
>
> I have put it here
>
> http://www.site266082.fsnet.co.uk/
>
> The password to get in is "saltsums" without the quotes. Its good for ten
> days
>
> If you can't get in and want it just ask and I will e-mail it to you
>
>
> Regards
> Grimeaper
>

[Marc Levenson]

David,

A new tank doesn't need those numbers to be perfect yet. It is great to
reach those ideal numbers, but not so critical.

Your Mg should be 3x the calcium reading. Which yours are. :)

If you want to get them up, and keep them steady, check out a product by
ESV called B-Ionic. That works great and I highly recommend it.

Marc


David Hillyard wrote:
> Thanks GrimReaper. I've saved your calculator - very useful for a newbie.
>
> On advice of lfs I am doing a 50% water change today to try and raise Ca &
> Mg levels but will probably stop worrying too much if it is normal to have
> lower readings initially.


--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

[Marc Levenson]

Hi GrimReaper,

I tried out your calculator page. If I filled it out correctly using
some imaginary numbers, I would need to add 5016 grams of salt. Now how
many grams come in 1 cup of salt (U.S. measurement) ? :D

Nice form page.

Marc


GrimReaper wrote:
> Hi Dave
> A bit bored today so I created a single web page calculator to do these
> sums. You can enter various SG's and tank volumes.
> You can save it to your computer and use as and when
>
>
> I have put it here
>
> http://www.site266082.fsnet.co.uk/
>
> The password to get in is "saltsums" without the quotes. Its good for ten
> days
>
> If you can't get in and want it just ask and I will e-mail it to you
>
>
> Regards
> Grimeaper
>

--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

[GrimReaper]

Sorry Marc
I hope I have done nothing wrong. It would help me to check it out if you
had said what numbers you used

I based the sum on this;-

Desired Salinity in ppt = 35
Actual Salinity in ppt = 0 (I'm using fresh water in this instance)
Tank Volume = 1 (litre) - fresh water
Answer = 35 gms.
Is this wrong Marc, I hope I have not mislead people.

BTW
This was my first post to David. Was this correct?

"I do this to calculate the amount of salt to add to increase the SG by
0.0x

Desired SG = 1.25 SG (About 34 Parts Per Thousand)
Current SG = 1.023 (About 31 Parts Per Thousand)

Difference = 3 ppt

Volume of water in tank = Say 200L (You will need to know this)

Therefore each litre of tank water needs 3 gms more (Difference)
so 3 gms x 200 Litres = 600 gms

That's it"
I added these numbers to my calculator and go 600 gms

Please advise as I'm quite worried now.

Also I can't help on this
>Now how many grams come in 1 cup of salt (U.S. measurement) ? :D
I guess you would need to know how big the cup was. I live in the UK and we
have cups in many sizes, I guess its the same in the USA


GrimReaper

[GrimReaper]

David check these out they may help

http://www.advancedaquarist.com/issues/nov2002/chem.htm

http://www.advancedaquarist.com/issues/april2004/chem.htm



Regards
GrimReaper

[GrimReaper]

Hello again Marc
If you enter numbers with a decimal point like say

Desired Salinity in ppt = 33.8
Actual Salinity in ppt = 31.2
Tank Volume (litres) = 200
Answer = 519.99999999999999 gms.

Could your 5016 grams of salt have been 501.1 (Five hundred and one point
one) and you missed the decimal point?

I hope so
Please let me know as it was not my intention to mislead people with my
calculator


Regards
Grimreaper

[Marc Levenson]

Have no worries. I just was curious how to convert from grams to cups,
sicne I don't have anything that measures in grams here.

I used your chart and entered the appropriate data if my salinity was
1.023(31.2ppt) and I wanted 1.026(35ppt) with a system volume of 330g of
water. I think that was 1320 liters (4 liters being equivalent to a
gallon of water, roughly).

So that would be 5016 grams. I just ran your page one more time to get
the right numbers.

I'm glad you are trying to help others. Excellent. Keep it up. :)

Marc


GrimReaper wrote:
> Hello again Marc
> If you enter numbers with a decimal point like say
>
> Desired Salinity in ppt = 33.8
> Actual Salinity in ppt = 31.2
> Tank Volume (litres) = 200
> Answer = 519.99999999999999 gms.
>
> Could your 5016 grams of salt have been 501.1 (Five hundred and one point
> one) and you missed the decimal point?
>
> I hope so
> Please let me know as it was not my intention to mislead people with my
> calculator
>
>
> Regards
> Grimreaper
>

--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

[Boomer]

GP

There are issues with this calculator

1. All sea salts are hydrated to some degree, some more, some less, so measuring a sea
salt by weight really does not work and can come up with salinities as low as 32 ppt

2. Where did those SG vs. S come from. STD NSW is 1.0264 = 35 ppt, when using a 77 F
hydrometer. Any temp variation from 77 F will cause a shift in SG to some other value
other than 1.026 for = 35 ppt, i.e..@ 82 F 35 ppt = 1.0255 SG

--
Boomer

Want to talk chemistry ? The Reef Chemistry Forum
http://www.reefcentral.com/vbulletin/index.php


Former US Army Bomb Technician (EOD)
Member; IABTI, NATEODA, WEODF, ISEE & IPS

If You See Me Running You Better Catch-Up


"GrimReaper" > wrote in message
...
: Sorry Marc
: I hope I have done nothing wrong. It would help me to check it out if you
: had said what numbers you used
:
: I based the sum on this;-
:
: Desired Salinity in ppt = 35
: Actual Salinity in ppt = 0 (I'm using fresh water in this instance)
: Tank Volume = 1 (litre) - fresh water
: Answer = 35 gms.
: Is this wrong Marc, I hope I have not mislead people.
:
: BTW
: This was my first post to David. Was this correct?
:
: "I do this to calculate the amount of salt to add to increase the SG by
: 0.0x
:
: Desired SG = 1.25 SG (About 34 Parts Per Thousand)
: Current SG = 1.023 (About 31 Parts Per Thousand)
:
: Difference = 3 ppt
:
: Volume of water in tank = Say 200L (You will need to know this)
:
: Therefore each litre of tank water needs 3 gms more (Difference)
: so 3 gms x 200 Litres = 600 gms
:
: That's it"
: I added these numbers to my calculator and go 600 gms
:
: Please advise as I'm quite worried now.
:
: Also I can't help on this
: >Now how many grams come in 1 cup of salt (U.S. measurement) ? :D
: I guess you would need to know how big the cup was. I live in the UK and we
: have cups in many sizes, I guess its the same in the USA
:
:
: GrimReaper
:

[Boomer]

and your table is assuming one is using a 75 F hydrometer in 75 F water ( know of any reef
tanks at that temp:-)). At 82 F it would need to read 1.0252 = 35 ppt

Salinity
60
74
75
76
77
78
79
80
81
82
83
84
85
86


16
1.0140
1.0122
1.0121
1.0119
1.0118
1.0116
1.0114
1.0113
1.0111
1.0109
1.0108
1.0106
1.0104
1.0103


30
1.0247
1.0228
1.0226
1.0225
1.0223
1.0221
1.0220
1.0218
1.0216
1.0214
1.0213
1.0211
1.0209
1.0207


31
1.0255
1.0235
1.0234
1.0232
1.0231
1.0229
1.0227
1.0225
1.0224
1.0222
1.0220
1.0218
1.0217
1.0215


32
1.0263
1.0243
1.0241
1.0240
1.0238
1.0236
1.0235
1.0233
1.0231
1.0229
1.0228
1.0226
1.0224
1.0222


33
1.0271
1.0251
1.0249
1.0247
1.0246
1.0244
1.0242
1.0241
1.0239
1.0237
1.0235
1.0233
1.0232
1.0230


34
1.0278
1.0258
1.0257
1.0255
1.0253
1.0252
1.0250
1.0248
1.0246
1.0245
1.0243
1.0241
1.0239
1.0237


35
1.0286
1.0266
1.0264
1.0263
1.0261
1.0259
1.0257
1.0256
1.0254
1.0252
1.0250
1.0248
1.0247
1.0245


36
1.0294
1.0273
1.0272
1.0270
1.0268
1.0267
1.0265
1.0263
1.0261
1.0260
1.0258
1.0256
1.0254
1.0252


37
1.0301
1.0281
1.0279
1.0278
1.0276
1.0274
1.0273
1.0271
1.0269
1.0267
1.0265
1.0264
1.0262
1.0260


38
1.0309
1.0289
1.0287
1.0285
1.0284
1.0282
1.0280
1.0278
1.0277
1.0275
1.0273
1.0271
1.0269
1.0267


39
1.0317
1.0296
1.0295
1.0293
1.0291
1.0289
1.0288
1.0286
1.0284
1.0282
1.0280
1.0279
1.0277
1.0275


40
1.0325
1.0304
1.0302
1.0301
1.0299
1.0297
1.0295
1.0294
1.0292
1.0290
1.0288
1.0286
1.0284
1.0282






--
Boomer

Want to talk chemistry ? The Reef Chemistry Forum
http://www.reefcentral.com/vbulletin/index.php


Former US Army Bomb Technician (EOD)
Member; IABTI, NATEODA, WEODF, ISEE & IPS

If You See Me Running You Better Catch-Up


"Boomer" > wrote in message
...
: GP
:
: There are issues with this calculator
:
: 1. All sea salts are hydrated to some degree, some more, some less, so measuring a sea
: salt by weight really does not work and can come up with salinities as low as 32 ppt
:
: 2. Where did those SG vs. S come from. STD NSW is 1.0264 = 35 ppt, when using a 77 F
: hydrometer. Any temp variation from 77 F will cause a shift in SG to some other value
: other than 1.026 for = 35 ppt, i.e..@ 82 F 35 ppt = 1.0255 SG
:
: --
: Boomer
:
: Want to talk chemistry ? The Reef Chemistry Forum
: http://www.reefcentral.com/vbulletin/index.php
:
:
: Former US Army Bomb Technician (EOD)
: Member; IABTI, NATEODA, WEODF, ISEE & IPS
:
: If You See Me Running You Better Catch-Up
:
:
: "GrimReaper" > wrote in message
: ...
:: Sorry Marc
:: I hope I have done nothing wrong. It would help me to check it out if you
:: had said what numbers you used
::
:: I based the sum on this;-
::
:: Desired Salinity in ppt = 35
:: Actual Salinity in ppt = 0 (I'm using fresh water in this instance)
:: Tank Volume = 1 (litre) - fresh water
:: Answer = 35 gms.
:: Is this wrong Marc, I hope I have not mislead people.
::
:: BTW
:: This was my first post to David. Was this correct?
::
:: "I do this to calculate the amount of salt to add to increase the SG by
:: 0.0x
::
:: Desired SG = 1.25 SG (About 34 Parts Per Thousand)
:: Current SG = 1.023 (About 31 Parts Per Thousand)
::
:: Difference = 3 ppt
::
:: Volume of water in tank = Say 200L (You will need to know this)
::
:: Therefore each litre of tank water needs 3 gms more (Difference)
:: so 3 gms x 200 Litres = 600 gms
::
:: That's it"
:: I added these numbers to my calculator and go 600 gms
::
:: Please advise as I'm quite worried now.
::
:: Also I can't help on this
:: >Now how many grams come in 1 cup of salt (U.S. measurement) ? :D
:: I guess you would need to know how big the cup was. I live in the UK and we
:: have cups in many sizes, I guess its the same in the USA
::
::
:: GrimReaper
::
:
:

[Boomer]

Salinity
60
74
75
76
77
78
79
80
81
82
83
84
85
86


16
1.0140
1.0122
1.0121
1.0119
1.0118
1.0116
1.0114
1.0113
1.0111
1.0109
1.0108
1.0106
1.0104
1.0103


30
1.0247
1.0228
1.0226
1.0225
1.0223
1.0221
1.0220
1.0218
1.0216
1.0214
1.0213
1.0211
1.0209
1.0207


31
1.0255
1.0235
1.0234
1.0232
1.0231
1.0229
1.0227
1.0225
1.0224
1.0222
1.0220
1.0218
1.0217
1.0215


32
1.0263
1.0243
1.0241
1.0240
1.0238
1.0236
1.0235
1.0233
1.0231
1.0229
1.0228
1.0226
1.0224
1.0222


33
1.0271
1.0251
1.0249
1.0247
1.0246
1.0244
1.0242
1.0241
1.0239
1.0237
1.0235
1.0233
1.0232
1.0230


34
1.0278
1.0258
1.0257
1.0255
1.0253
1.0252
1.0250
1.0248
1.0246
1.0245
1.0243
1.0241
1.0239
1.0237


35
1.0286
1.0266
1.0264
1.0263
1.0261
1.0259
1.0257
1.0256
1.0254
1.0252
1.0250
1.0248
1.0247
1.0245


36
1.0294
1.0273
1.0272
1.0270
1.0268
1.0267
1.0265
1.0263
1.0261
1.0260
1.0258
1.0256
1.0254
1.0252


37
1.0301
1.0281
1.0279
1.0278
1.0276
1.0274
1.0273
1.0271
1.0269
1.0267
1.0265
1.0264
1.0262
1.0260


38
1.0309
1.0289
1.0287
1.0285
1.0284
1.0282
1.0280
1.0278
1.0277
1.0275
1.0273
1.0271
1.0269
1.0267


39
1.0317
1.0296
1.0295
1.0293
1.0291
1.0289
1.0288
1.0286
1.0284
1.0282
1.0280
1.0279
1.0277
1.0275


40
1.0325
1.0304
1.0302
1.0301
1.0299
1.0297
1.0295
1.0294
1.0292
1.0290
1.0288
1.0286
1.0284
1.0282






--
Boomer

Want to talk chemistry ? The Reef Chemistry Forum
http://www.reefcentral.com/vbulletin/index.php


Former US Army Bomb Technician (EOD)
Member; IABTI, NATEODA, WEODF, ISEE & IPS

If You See Me Running You Better Catch-Up

[GrimReaper]

Hello Boomer
Been away on holiday. Just read your posts. Thank you for pointing out my
errors.

BTW you said;-
2. Where did those SG vs. S come from. STD NSW is 1.0264 = 35 ppt, when
using a 77 F
hydrometer. Any temp variation from 77 F will cause a shift in SG to some
other value
other than 1.026 for = 35 ppt, i.e..@ 82 F 35 ppt = 1.0255 SG

I got then from an old book I have.
Thank you for pointing out the temp variation but if I am reading your
comments correctly a change of 77 to 83 F = 6 Deg F will cause an actual SG
difference of 1.0255 - 1.026 = 0.0005 SG. or 0.00008333333333 SG point per
Deg F
WOW there is nothing available to Aquarists in the UK that can tell that
difference. Reef tanks are not that critical. My calculator was based on a
sum I do this sum manually to keep my salinity to what I want. The animals I
breed have no problems with that. I thought it would help.


You are much respected on a number of forums etc. so I don't want to poke
fun at you and am sorry my original post to cause a problem when in fact it
is ok for the majority of applications. I will not post here any more and
will unsubscribe now. No offence but a difference of 0.0005 SG accuracy is
just ******** and I don't want to start a war. I too have spent many years
in the military. I was involved in Jebel Akdar, Brunei and Borneo, Aden and
Dhofar. Those conflicts have taken it out of me mentally. They are something
I want to forget. Life is too short for me to get involved with right and
wrong.

Take care mate


GrimReaper

[Boomer]

Go back and look at that chart again for a 75 F hydrometer I posted. You are not reading
it right or did not look at it

"WOW there is nothing available to Aquarists in the UK that can tell that
difference"

There isn't ? Of course there is.


For that "77 F hydrometer @1.026 for = 35 ppt, i.e..@ 82 F 35 ppt = 1.0255 SG. "

You are not looking at it right, that is a difference in salinity of 1.2 ppt or 36.2 vs.
35 ppt ppt, that is allot. Look at that 75 F hydro table and look at 82 F that is a
diff or 1.6 ppt . Now think if one used a 60 F hydrometer @ 82 F. As the hydrometer
calibration temp approaches the sample temp the value narrows. So at 82 F a 60 F hydro
would be off 4 ppt or 35 ppt vs 39 ppt, meaning if the hydro read 1.0264 the salinity
would not be 35 ppt but 39 ppt, only the Red Sea is that high.. This is all why so many
people make so many errors is salinity. If on the other hand it was a SeaTest swing arm
hydro, that was working correctly, there is not temp correction, as the plastic changes
with temp. Also, many do not know it but a refract right out of the box, even if one so
called calibrates it to Fw, it is off 1.5 ppt to low. The 82 F is brought up because most
run their tanks at that temp and most that have a floating hydro are calibrated @ 75 F (
but some are 25C, 20 C and 15 C), so in short you would want it to read about 1.025 and
not 1.026..........No 1 ppt is not that big a deal it is like 35 ppt vs 36 ppt but 35 vs
39 is a big deal.


No one is starting a war where did you get that idea.
--
Boomer

Want to talk chemistry ? The Reef Chemistry Forum
http://www.reefcentral.com/vbulletin/index.php


Former US Army Bomb Technician (EOD)
Member; IABTI, NATEODA, WEODF, ISEE & IPS

If You See Me Running You Better Catch-Up


"GrimReaper" > wrote in message
...
: Hello Boomer
: Been away on holiday. Just read your posts. Thank you for pointing out my
: errors.
:
: BTW you said;-
: 2. Where did those SG vs. S come from. STD NSW is 1.0264 = 35 ppt, when
: using a 77 F
: hydrometer. Any temp variation from 77 F will cause a shift in SG to some
: other value
: other than 1.026 for = 35 ppt, i.e..@ 82 F 35 ppt = 1.0255 SG
:
: I got then from an old book I have.
: Thank you for pointing out the temp variation but if I am reading your
: comments correctly a change of 77 to 83 F = 6 Deg F will cause an actual SG
: difference of 1.0255 - 1.026 = 0.0005 SG. or 0.00008333333333 SG point per
: Deg F
: WOW there is nothing available to Aquarists in the UK that can tell that
: difference. Reef tanks are not that critical. My calculator was based on a
: sum I do this sum manually to keep my salinity to what I want. The animals I
: breed have no problems with that. I thought it would help.
:
:
: You are much respected on a number of forums etc. so I don't want to poke
: fun at you and am sorry my original post to cause a problem when in fact it
: is ok for the majority of applications. I will not post here any more and
: will unsubscribe now. No offence but a difference of 0.0005 SG accuracy is
: just ******** and I don't want to start a war. I too have spent many years
: in the military. I was involved in Jebel Akdar, Brunei and Borneo, Aden and
: Dhofar. Those conflicts have taken it out of me mentally. They are something
: I want to forget. Life is too short for me to get involved with right and
: wrong.
:
: Take care mate
:
:
: GrimReaper
:
:

[miskairal]

GrimReaper I somehow missed this whole thread and I can't get to your
calculator as it's over 10 days. I'd really like to have it as I'm
filling my first salt water tank right now. My email address is
miskairal [at] [gmail] [dot] [com] or I can return to your site and try
again if you'd prefer to put it there (assuming of course you don't mine
me having it).

Thankyou
miskairal

GrimReaper wrote:
> Hi Dave
> A bit bored today so I created a single web page calculator to do these
> sums. You can enter various SG's and tank volumes.
> You can save it to your computer and use as and when
>
>
> I have put it here
>
> http://www.site266082.fsnet.co.uk/
>
> The password to get in is "saltsums" without the quotes. Its good for ten
> days
>
> If you can't get in and want it just ask and I will e-mail it to you
>
>
> Regards
> Grimeaper
>

[miskairal]

THANKYOU!

miskairal wrote:
> GrimReaper I somehow missed this whole thread and I can't get to your
> calculator as it's over 10 days. I'd really like to have it as I'm
> filling my first salt water tank right now. My email address is
> miskairal [at] [gmail] [dot] [com] or I can return to your site and try
> again if you'd prefer to put it there (assuming of course you don't mine
> me having it).
>
> Thankyou
> miskairal
>
> GrimReaper wrote:
>
>> Hi Dave
>> A bit bored today so I created a single web page calculator to do these
>> sums. You can enter various SG's and tank volumes.
>> You can save it to your computer and use as and when
>>
>>
>> I have put it here
>>
>> http://www.site266082.fsnet.co.uk/
>>
>> The password to get in is "saltsums" without the quotes. Its good for ten
>> days
>>
>> If you can't get in and want it just ask and I will e-mail it to you
>>
>>
>> Regards
>> Grimeaper
>>

[andrewjonn]

I tested a small amount of labor force survey of salt if I reverse osmosis I have a bad batch, but the calcium and magnesium readings are too high for him. The test kit, I used a new, free from pollution. Labour Force Survey has confirmed my low reading is accurate.