A little interesting thing here.... This 90 gallon tank they're in (which is a holding tank while I build the 300)... Its got no lighting and its in a room thats generally kept in darkness in the evenings... These fish seem to LOVE the lower lighting... they seem calmer than ever and much more brightly colored than normal. When I look at the Labiatus, as an example, it seems to glow with brighter coloration in the the darkness.... Could this be so they can spot eachother more easily in the dark depths of the lakes where they are found? Seems pretty obvious, really.... I'm sure I read somewhere that the deepest specimens tend to have the brightest reds.