Originally Posted by Jeff likes fish
Is it okay for me to have 5 to 10 gallon heater in my 20 gallon tank? I have a hood on with incandescent lights in it and it's turned on about 7-10 hours everyday along with light from the window across the room. The temperature ranges from 75 to 78. I have mollies, platies, a dwarf gourami, tetras, and a Cory cats. Will these fish be okay under these conditions or should I upgrade my heater?
fish do not care about light per se, if there's light in the room to make night/day you're fine. As long as you don't have plants, because they need certain lights that incandescent bulbs can not provide.
As for the heater, it might work but it'll be working overtime, all the time IMO
. It might work, but for how long? If it were me, I'd get one sized for the tanks volume or a bit bigger (20-50g).
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