Cooking fishes?

[Bali Brain]

Hi,

Just set up a 5' by 2.5' by 2.5' tank after my last tank leaked. Trouble is that the LFS who set up the tank for me used an Atman as a return pump, and the water gets very warm, about 30 degrees Centigrade. Now, I know that fishes can withstand a wide range of temperature, but if the water is constantly this warm-it actually feels warm to the touch - will this affect the fishes in the long run? Would appreciate some feedback from anyone who is still keeping slightly cooked fishes

[jervismun]

The FOWLR tank in RB (2nd level) is 33ºC during day time... so I guess, fishes can withstand 30ºC alright, but inverts are a lot more sensitive to high temperature.

[Qxnviolet]

Erm, i presume you are using a thermometer to measure your temperature. Do you have a chiller? For FOWLR setups...30 degrees isn't going to pose any problems. Corals and inverts might though. Any plans to keep any corals?

[arcanehacker]

Fishes and shrimps are ok at 30. Corals will melt .

[FuEl]

30 degrees celcius should be within the temperature tolerance of tropical fish. One thing you should take note is that dissolved oxygen levels will be lower at higher temperatures. Don't overstock and all should be well.

[Bali Brain]

Thanks for the advice, guys. I realise that corals need lower temperatures. In fact I used to have corals in my previous tank which used a cannister filter (not the best set-up), and using a fan to lower the temperature. This was quite satisfactory, lowering the temperature by 1-2 degrees. Now my new tank has a sump and with the return pump generating so much heat, and the tank volume 3 times the size of my old tank, a fan would not be effective and I guess keeping corals is out unless I get a chiller. Trouble is I also have big Angels, and I don't think it would be worth it to invest so much just to keep Mushies, which my Emperor doesn't touch. My concern now is more of whether the 30 degrees C would have a long term effect, even if it doesn't appear immediately so from my observation.

[jervismun]

I strongly believe that bringing the water temperature level a bit lower can also keep your Angels happier... no need very low, 28 - 29ººC also good enough. Maybe get a Resun (larger model). The chiller can also help make sure ur temperature doesn't go higher than 30ºC... you know, during hot days... disaster Temperature can hike to 33ºC and that's a killer!

[Bali Brain]

Well, if that happens, I'll add in ice cubes, Ha Ha.

Seriously, I don't doubt what you said but it's also a matter of economics - acquiring a chiller to keep fishes is somewhat extravagant, isn't it?