I bought a mini heater for my 1.5 gallon but am a little worried about heating it since the tank is so small and it is acrylic. It is going to serve as my hospital tank. Is it safe to heat a small acrylic tank? Thx.
Thx, but I need to keep it nice and toasty warm - at least 78 for him. He's been in the that temp in the big tank for a long time and the change would be too shocking for his already weakened system.
I've used a regular submersible heater in pretty much the exact same tank as you're describing, a 1.5 acrylic betta tank.
It was in there for almost two years and it worked fine