Beautiful tank and beautiful fronts nice to see some keepers not overstocked. I believe there still a little young and small plus in IMO they are all males except for the black widow. Fronts live in colonies and usually the best stocking is 3 females per male. I only see 4 fronts are there more in the tank? if not in that size tank i would add at least 5 more try to get females.
With Fronts you need to be VERY patient with them they are a long lived fish that's get to impressive size and the hierachy of the colony is the most interesting to watch
With Fronts you need to be VERY patient with them they are a long lived fish that's get to impressive size and the hierachy of the colony is the most interesting to watch