Got 3 black khulis and 3 striped khuli's whilst the striped have seemingly dissapeared either as expected in the shadows dug in the sand or in an ADFs stomach. The black khuli's have really surprised me though they are like rockets constantly chasing each other round the tank, they are more active then any other fish in my tank; endlers, albino corys, peppered corys, black cory, ADFs and Betta crowntail. Wondering if this is normal behaviour for them to be rockets even with full tank lights blaring.