Originally Posted by Irishrover
Hello. I have a tall 65 gallon tank and I would like to get some angel fish. My question is, do they all have to be the same species of angelfish or can they be different kinds? I mean can I keep Pterophyllum scalare, Pterophyllum altum, and Pterophyllum leopoldi all together or? Thank you in advance for any information you can provide.
In theory you could mix the species, but I would not. The tank is on the small side for altums which get VERY large from what I have read (12" tall or larger).
You also run the potential for hybridization, which should be avoided IMO
. Altums and leopoldis are relatively rare in the hobby, and until they become more established, I think the species should be kept pure.