Hi, I have a 2.5 acrylic bow tank with one
betta in it. The temperature is around 73/74. I need a small heater and was wondering this...
Can I get the hydor mini heater (no temperature setting) and put it
under the tank? It would rest on a piece of glass which the tank is on. I just feel it's too small a tank to put it in as you cannot really control it and a bigger heater might be too bulky inside the tank. I'm sure someone has found a solution to the 2.5 gallon betta tank and I was looking around the forums but haven't found anything yet.