[105man]

Any experience with banner fish in a reef tank? Would one be ok with mushrooms and polyps?

Also, does one do ok, or must they be kept in pairs or more?

 

[tdwyatt]

It will depend on which of 2 very similar Heniochus fishes you purchace, for the differences and the info you need, see This post on the difference between the two similar Heniochus spp

HTH