Mine are always in the front waiting for food to shoot through the powerhead and dart through rock holes which is pretty funny to watch. They will come all the way to the front of the glass and stare and say hey. I cant imagine not having my little pair.I have an Exquisite Firefish (beautiful looking fish) and he's the most boring fish I've ever had. All he ever does is hang in the water column or hide.
He's about 3.5 inches long so he could be replaced by 3.5 inches of interesting fish! What's your experience, is this all I can expect?
Right now I'm leaning toward replacing his boring butt.