Cardinalfish as tankmate?

[jester23]

Hello everyone. I would like to know if a cardinalfish either a pajama or banghai would be alright in my tank. I have a 20 gallon fowlr with:
1-Ocellaris Clownfish
1-Pink Spotted Goby
1-Emerald Crab
4-Blue Legged Hermit Crabs
5-Assorted Snails
Does anybody have any objection to this? I would like the Cardinalfish and a cleaner shrimp and thats it.

 

[thincat]

I have a pajama cardinal fish and I think it would do okay in your 20. Don't expect it to swim around alot since it's more of a night time fish. They also do better in groups of three or more. One will be okay in your 20.

 

[jester23]

I heard they fight amongst themselves. Or is that just the banggai cardinal?

 

[thincat]

I guess you might say they bicker, not so much fight. But that is the reason to house either one or three so they don't gang up on each other.

 

[jester23]

Oh ok. I've also heard that in group of 3 they will pair up and kill the leftover.