Since I will be purchasing 1 or more bettas on the 17th, I need to get some tanks ready today. I am a little hesitant, as they were Peanut, Augie and Veles' two tanks (they all died of unknown reasons) but I can't afford any other tanks right now, other than maybe a 2 gallon critter keeper.
So back to my point, I'm short a heater now (one broke) and I need another one. I can buy one if necessary, it's just that they're so darn expensive!! Would a BiOrb heater work in a 2.5 gallon (that isn't a BiOrb tank?) They look like this. They're cheaper than the regular ones.
I am guessing yes, just making sure though.