Cardinal compatibility
 

Has anybody kept pajama cardinals with bangai cardinals, any problems or are they ok? tank size is a 140g. Everything I have read says it should be no problem, but who knows sometimes.

Cardinals
 

I tried it once. I have a 180g reef set up. When I was first stocking the tank I wanted something that would school. So I bought 4 of each. What happened to me is that 2 of the Banghai paired off and systematically killed of all the others. These two have actually mated and I have had fry in the tank on several occasions. They tend to eat them too, once they get bigger. Mine have grown now to about three inches. There huge....not saying it won't work...but that is what happend to me

^ Sounds familiar, I bought 6 for my 200g FOWLR system, they did the same thing...