MH lights heating my tank.

George Patterson wrote:

RubenD wrote:

I knew someone who put a 2 litter bottle with water in the fridge and
then
put it in the sump when it really got warm.


I've dumped ice in my 125 with no noticeable effect. Good luck with that.

George Patterson
Forgive your enemies. But always remember who they are.

I usually have a couple gallons of slt water in the fridge just in case...

Evaporation is one of the benefits of fan cooling, because
you can add more lime water.

Wayne Sallee
Wayne's Pets



KurtG wrote on 1/14/2007 11:01 AM:

I added a fan that blows across the surface and light fixture. It's
staying cooler, but evaporation is higher too. I doubt that's a long
term solution given my locale, but it will hold me until next month.

--Kurt


Wayne Sallee wrote:
Yep, fans do a great job of cooling the water. I prefer to put it over
the tank instead of the sump for 2 reasons.
(1) more surface area to evaporate
(2) fan in sump can tend to get salt spray into the air.

Wayne Sallee
Wayne's Pets



sdsdevelopment wrote on 1/12/2007 8:11 PM:
"KurtG" wrote in message
...
If it's not one thing, then it's another...

I came home this evening and my tanks temp was pushing 86.4. Ouch.

I turned off one MH, turned on the AC, and have a fan on the tank.
It's starting to cool off, but what now? Chiller? Any other tricks?

--Kurt

Kurt,
Try one of the 6" clip on fans blowing over a sump if you have one. I
use 2-250 watt MH and 2 VHO actinics on my 65 and 90 and with 2 fans
in canopy and one blowing over my sump and I never have a heat
problem. I do have a 1/10hp chiller just in case though. Tanks stay
at 78-80 max even in the summer. On our 29 frag tank we do have a
heat issue with 1 MH but a bigger fan helped.
Water surface cooling does wonders for dropping tank temp but also
accelerates evaporation

KurtG wrote:

If it's not one thing, then it's another...

I came home this evening and my tanks temp was pushing 86.4. Ouch.

I turned off one MH, turned on the AC, and have a fan on the tank. It's
starting to cool off, but what now? Chiller? Any other tricks?

--Kurt


Just a follow up. I think 3 major things solved this problem:

* I added a second heater to keep the overall temp warmer
* Added a tank surface fan and sump fan that are on the same timer as
the MH lights
* drum roll...... Removed the ballasts from the sump enclosure. These
generate a lot of heat that the sump was picking up.

--Kurt

Adding a heater to a reef tank to reduce temp
swings, is overrated.

Wayne Sallee
Wayne's Pets


KurtG wrote on 1/31/2007 5:20 PM:
KurtG wrote:

If it's not one thing, then it's another...

I came home this evening and my tanks temp was pushing 86.4. Ouch.

I turned off one MH, turned on the AC, and have a fan on the tank.
It's starting to cool off, but what now? Chiller? Any other tricks?

--Kurt


Just a follow up. I think 3 major things solved this problem:

* I added a second heater to keep the overall temp warmer
* Added a tank surface fan and sump fan that are on the same timer as
the MH lights
* drum roll...... Removed the ballasts from the sump enclosure. These
generate a lot of heat that the sump was picking up.

--Kurt

Wayne Sallee wrote:
Adding a heater to a reef tank to reduce temp swings, is overrated.

I have this down to a single degree. 79.7 by night and 80.8 by day.

Until the next thing breaks.....

--Kurt