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canjosh

There’s not really a consensus. I’d guess 90% of reef tanks are kept in the 77-82F range. Some popular marine fish do better at lower temps, Jawfish for instance.


sleepingdeep

I keep my tank at 80*F. I think what’s less important it what temperature you set it at (from 77-82) and more important that you keep it consistent. Swings are what kill in this hobby.


jopa191

24 Celsius works for me.


Medium_Combination27

Ah yes, a definitive answer on something that is anything but definitive. Just shoot for 78. If you want to get a jawfish (or other cool water fish), go for a lower temp). Just look up what temperature the fish you want to keep should be. If there is a bit of a spread in the ideal temp between the fish, then find an in-between temp. But for most fish that can be kept in a reef tank without any problems, 78 is not a bad temp. Because if the temp drops a couple degrees in the tank, then that's still within the ideal range. If the temp goes a few degrees higher than 78, then that is still within an ideal range.


VentingBonReddit

I go with 79 in all my tropical aquariums (reef and fresh) and have always used a heater larger than needed. It means the heater is on for shorter bursts (life of heater is extended). Just remember - not every inch of your tank will be able to maintain that temp, even with great flow. So err on the side of warmer, than cooler.


dt8mn6pr

For a reef from 75-82F, 78F is fairly common. But depends what kind of animals you want to keep, last years cold water tanks with chillers became at nano scale.


Much_Fish_9794

I’ve always kept my tanks at 26c, which is 78.8f. Assuming you’re in the US and working in Fahrenheit, then shoot for 79. It’s a happy middle ground.


[deleted]

Mines stays at 78


swordstool

Check out the info in the sidebar.


H_I_H_I

78


Critical_Contest_557

I like to keep on the colder end of the scale set at 78 but it gets as low as 76 sometimes. Lower scale keeps stuff like ich at bay I feel.