Firefish really seem to do better in groups, odd numbers best. They're far less shy this way. Very social fish. I have three, Moe, Larry and Shimp. Moe is the big boss of the trio, Larry sticks close by him all the time. Shimp is the runt of the litter, out with the other two during feeding or when lights first come on, but then rushes to hide in the rocks at the least provocation. Mine tend to hover upper mid tank, right below a small opening in the eggcrate for the skimmer outlet. I'm sure it is just a matter of time until there will be a jumper, probably the skittish Shimp. Very cool fish, but other than my Mandarin, these three are the only fish I have that I haven't been able to train to eat meaty foods from an algae clip. They have to have really small stuff in the column. All tank mates are pretty docile: Green Mandarin, Yellow Coris, False Perk, Midas blenny, and a Magenta Dotty (Maggie) with an attitude. All of these guys are about the same size except the Blenny and the Mandy. They all get along swimmingly. Maggie used to chase everybody, however, she seems to have settled down recently, but God help any new additions to that tank. I think I'm fully stocked there maybe a little overstocked, but so far every one's happy.
