Green water--- UV needed ???????

Hi

Whenever I do a water change, the water that I remove always has a hint of
green.

I've been using carbon/phosphate removers on and off, but this doesn't seem
to get rid of the green.

My rocks turn green as layers of green particles seem to settle on them.

I notice that UV sterilisers are used in ponds to remove 'green water'

would this do the trick here ?

Tank
600 litres
2 x 150 MH lighting (8 hours/day)
2 x Blue Actinic (12 hours)
Deltec Calc reactor
Deltec apf600 Protein skimmer

Ammonia 0
Nitrite 0
Nitrate trace
Calcium 480
PH 8.3

water change 50 litres/wk

"Iain" wrote in message news:hBslc.81$i24.60@newsfe1-win...
I notice that UV sterilisers are used in ponds to remove 'green water'

would this do the trick here ?

Wouldn't you prefer filter feeder animals benefit from water borne algae?
I know some people who killed some animals introducing UV or more effective
mechanical filters. I killed myself red scallop just by using filter sock.
It was doing fine for months, and died weeks after I added a filter sock.
In my opinion a perfect example of water lacking appropriate food particles.

Get some filter feeders or add more hard corals. I'd like to know your tank
setup and how your getting this water like that.

--



My Aquarium Homepage
http://members.optusnet.com.au/pinba...kozzysaquarium

(Still being worked on)


"Iain" wrote in message
news:hBslc.81$i24.60@newsfe1-win...
Hi

Whenever I do a water change, the water that I remove always has a hint of
green.

I've been using carbon/phosphate removers on and off, but this doesn't
seem
to get rid of the green.

My rocks turn green as layers of green particles seem to settle on them.

I notice that UV sterilisers are used in ponds to remove 'green water'

would this do the trick here ?

Tank
600 litres
2 x 150 MH lighting (8 hours/day)
2 x Blue Actinic (12 hours)
Deltec Calc reactor
Deltec apf600 Protein skimmer

Ammonia 0
Nitrite 0
Nitrate trace
Calcium 480
PH 8.3

water change 50 litres/wk

IME UV is pretty much a waste of money. You WILL kill EVERYTHING - good and
bad - in the water column if you buy a big enough light and pass the water
through at the correct flow. But...you will NOT kill anything on the rocks,
glass, fish, inverts, etc so if you're goal is to remove a virus, you won't.
If you are adding something to the tank that is causing the green water
(over feeding, plankton, city water, whatever) it will most likely be
cheaper for you to figure out what to NOT do than get the UV.

What's worst, is that you may get the UV and very well find out that you
still have the problem...which leads to the paragraph above that I had to
painfully learn for myself regardless of many posters who recommended to
save my $.

Just my .02. Good luck in fixing the issue!
LT



"Iain" wrote in message
news:hBslc.81$i24.60@newsfe1-win...
Hi

Whenever I do a water change, the water that I remove always has a hint of
green.

I've been using carbon/phosphate removers on and off, but this doesn't
seem
to get rid of the green.

My rocks turn green as layers of green particles seem to settle on them.

I notice that UV sterilisers are used in ponds to remove 'green water'

would this do the trick here ?

Tank
600 litres
2 x 150 MH lighting (8 hours/day)
2 x Blue Actinic (12 hours)
Deltec Calc reactor
Deltec apf600 Protein skimmer

Ammonia 0
Nitrite 0
Nitrate trace
Calcium 480
PH 8.3

water change 50 litres/wk

Try a diatom filter they work great.
Decrease lighting and nutrients in the tank
Kasselmann aquarium plants book 59.99
Eco-Complete 14.99 a bag

Marcus

http://www.aquatic-store.com/

Co2 tanksand regulators
Power compact bulbs and MH the lowest on the net
Co2 regulator and bubble counter with needle valve $75
JBJ chillers and LightingWE WILL BEAT ALL MAJOR COMPETITORS
JBJ lighting, Hamilton lighting and milwaukee 2-5% price match find it
cheaper and buy it with us for 2-5% less than their price




sssssOn Tue, 4 May 2004 15:51:22 -0500, "LarryT" sssssssssssssssss
wrote:

IME UV is pretty much a waste of money. You WILL kill EVERYTHING - good and
bad - in the water column if you buy a big enough light and pass the water
through at the correct flow. But...you will NOT kill anything on the rocks,
glass, fish, inverts, etc so if you're goal is to remove a virus, you won't.
If you are adding something to the tank that is causing the green water
(over feeding, plankton, city water, whatever) it will most likely be
cheaper for you to figure out what to NOT do than get the UV.

What's worst, is that you may get the UV and very well find out that you
still have the problem...which leads to the paragraph above that I had to
painfully learn for myself regardless of many posters who recommended to
save my $.

Just my .02. Good luck in fixing the issue!
LT



"Iain" wrote in message
news:hBslc.81$i24.60@newsfe1-win...
Hi

Whenever I do a water change, the water that I remove always has a hint of
green.

I've been using carbon/phosphate removers on and off, but this doesn't
seem
to get rid of the green.

My rocks turn green as layers of green particles seem to settle on them.

I notice that UV sterilisers are used in ponds to remove 'green water'

would this do the trick here ?

Tank
600 litres
2 x 150 MH lighting (8 hours/day)
2 x Blue Actinic (12 hours)
Deltec Calc reactor
Deltec apf600 Protein skimmer

Ammonia 0
Nitrite 0
Nitrate trace
Calcium 480
PH 8.3

water change 50 litres/wk