LOL. 80's and 90's.... The highest my tank has hit this summer so far is about 29.5C with the lights on. Its been only 26-27C lately though. Not too bad at all. I have no idea what all this is in F and I'm not about to start learning. I'm happy with metric. Luckily, my thermometer is also only measured in metric so I won't ever get confused or have to learn the wrong units.

78 :) with ac in the house my heater has to work a bit more in the summer

Tank is in the basement with lots of water surface and movement, temperature never varies from 78-79.

mine is 81.3 at night, 80 during the day..

I like to keep it at about 80 but it creeps up during the day to around 82.5.

Both of mine stay at a breezy 78... yay chillers!

Mine is sitting at about 82.4
Using a digital thermometer
Supposed to be a little hotter today so I think it my hit 83-84 today

My tank on hot days usually sits at about 85. Normally it is 79 - 82.

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79-80 in the winter and 82-85 in the summer depending on the type of day.

Chillers are so darn expensive that I decided to get a BIG chiller for the house! LOL

My tank will travel from 79-81, but it can get as high as 84 if the house is hot.