How many yellow striped cardinalfish

[Alepop1211]

Could I keep these as a group of 5

[Brookster123]

How big is your tank?. They actually get pretty big. Like a tennis ball size.

[Alepop1211]

A 120 i just want to know if they work in groups

[Brookster123]

I apologize, I was thinking of pajama cardinal. I don't know on the yellow striped.

[Sniperhank]

That would be fine. These don’t get much bigger than 2 inches at max. I would keep the school in odd numbers Incase they try any aggression...even if not likely to occur.

[Alepop1211]

Thank you