Both of my rbp's are only 1 1/2 months old now and are at 2+ inches. they are all alone in a little 10 gallon and seem to be doing great. how long till I should think about buying a 55 gallon or more ? anyone ?
I kept a couple of very small (1" give or take) reds in a 10 gallon when I just started, and within one and a half month, I had only one left...
I'd buy a larger tank (30+ gallons) asap, because they can turn against each other for no apparant reason, even though there seems to be no agressive behaviour at all. 10 gallons is simply too small, even for just two small reds.
On eother thing: I advise you to get at least one more redbelly: when you only have two, the dominant one will often bully, and eventually kill the other one: they can only vent their agression on each other, so it's only a matter of time until one kills the other. Getting at least one more makes sure that agression is distributed more evenly.
btw: you got the coolest username I've ever seen :