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Old 01-11-2010, 07:33 AM   #1
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EMERGENCY - Extreme water temps

Hi all - HELP!

Have had my 42G FOWLR Tank now for around 4 months -
Temps have been steady at 25 Degrees C (77F).

A massive heat wave has been worrying me for the past few days, my tanks temp has sky rocketed over the past 3 hours from 27 Degrees C (81F) to 34 Degrees C (93F). When I got home from the beach, the coral beauty was upside down on the bottom of the tank, stiff as a board. A cool change is expected soon.

Tank heater hasn't been on all day (It's got power, but its set at 77F - and the light hasn't been on). I have had a fan sitting on the surface of the water trying to dissipate the heat, over the course of the heat wave.

I am thinking of putting a bottle of frozen water in the tank. Will this reduce the temp too quickly?

My clownfish(s), chromis(s), firegobies and coral shrimp are all still OK. But I don't want to lose them if I can avoid it, and the last thing I want to do is drop the temp too quickly and kill the survivors.

Any ideas on how to reduce the temps safely other than the fan?

I have emergency water aside, but this is no better - it's at 32 degrees C (89F)

As the worst of the heat is over, I will be saving up for a chiller to stop this happening in future.

(Has anyone heard of a HOB, or internal chiller? Or are they all external units? - as my tank is a hooded display with no sump - just wet/dry trickle and a protein skimmer)

Excuse any errors - I was typing this in a rush.

Thanks in advance
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Old 01-11-2010, 12:31 PM   #2
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The frozen water bottle will be good if the fan is not doing the job. Do you have a sump you can put the bottle in?
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Old 01-11-2010, 06:10 PM   #3
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Thanks Mike,

Put the frozen water bottle in overnight and left the fan on - its down to about 31C (87F) - but the cool change has hit, so it should be on the decline now.

They all appear to have survived the night.
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Old 01-11-2010, 06:14 PM   #4
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do have a sw tank but i keep frozen bottles for this very reason. glad everything seemed to make it. keeping the lid up fans blowing over the water small wcs with cooler water can all help.
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Old 01-11-2010, 06:57 PM   #5
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Have you ever thought about investing in a aquarium chiller.
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Old 01-11-2010, 07:01 PM   #6
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Quote:
Originally Posted by divedeep1689 View Post
Have you ever thought about investing in a aquarium chiller.
Sure have - hence my earlier questions

"As the worst of the heat is over, I will be saving up for a chiller to stop this happening in future.

(Has anyone heard of a HOB, or internal chiller? Or are they all external units? - as my tank is a hooded display with no sump - just wet/dry trickle and a protein skimmer)"
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Old 01-11-2010, 07:03 PM   #7
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ah i missed that some how..
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Old 01-11-2010, 07:25 PM   #8
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Heheh, it was a scrambled post - I was rushing cause I lost a tankmate, and didn't want to lose more.

Surprised the Coral Banded Shrimp weren't the first to go.


On another note, does anyone know of and temp hardy fish?
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Old 01-11-2010, 08:20 PM   #9
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damsels are the hardiest fish i know of but you will want it out of tank at a later day as they get very aggresive. I had a couple damsels survive freezing temps extreme high temps ph way way way high and way way low, they are the gold fish of saltwater.
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Old 01-12-2010, 03:09 AM   #10
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Just got home from work... More bad news.

Tank is now down to 29C (84F) but the fire gobies are missing, and the pregnant coral banded shrimp has died.

ARGH


The damsels and the clowns seem fine.
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