Summer Temp Fluctuations

[richiestang_78]

Now that its summer is it alright to the fish if my tanks go up to 81ish during the day and back down to there normal 78-79 at night? In one tank there are just some Tetras and a Pleco, in the other there are some Danios, Snails, Cories and Praecox Rainbow. And then in a small 10 gallon there is a Betta.

[cwt]

I'm running into the same thing; had to turn the heater back on my upstairs tank because the room will get warm in the summer. Danios can hang in through most anything, but 81 sounds a bit warm to me; I keep mine at 76. The rest might be more used to the higher temps.

[Aries]

My tank usually sets at about 77 Degrees, with the air on it will dip just slightly below that. I got my heater on a schedual to come on for two hours every 9 hours, but I have it up higher to help the bacateria grow since my last tank broke I had to replace it and begin a fish cycle. Even in my other tank I had the temp bobbing around the 80's. I have 5 guppies and a pelco and they all liked the warmer water than the chill at 77's. I would just watch your fish and experiment a bit and go for what they seem to feel comfortable with. My tank right now is 83-84's. They are doing just fine.