I always had three but then the two ended up killing the 3rd. I later was able to breed the final two that I had. So I think the 2 just tolerated each other. they would stick to each other and were always in the same part of the tank. I started out with 4, they ate one. then I was at three for a very long time.. until bammm I heard splashing and by the time I went to the tank the 3rd RBP body was half gone (10 seconds if that) The rbp were the size of my hand at this point 8"-9"
something cool about a rbp I had once. I had one that could eat 100 goldfish in two days. I would throw 100 in and the rbp would eat all of them except 1. The rbp would swim around with this fish for an entire month. The next time I feed him he would eat all of the fish except for 1, but it wasnt the same one as before. I guess he was just lonely. cool to see this behavior. I ended up selling that RBP to a zoo. Largerst captive RBP they say they had ever seen.
