I just bought a 2.5 gallon tank for my betta and have had it for a couple of days, now my mom just bought one to after seeing mine. She had nowhere to put her 2.5 gallon tank so she put it on my computer desk on the other side.
Is there a heater out there that is made to heat two tanks at once?? And if so which kind do you guys suggest I get?
Also how do you guys clean a small tank, like do you leave the fish in the water?? how do you empty out water? and how do you clean the bottom? These are small 2.5 gallon tanks