i have been considering adding a chevron, or kole tang, and a long nose butterfly to my reef. i've read about all i can find on WWM on all three fish being considered, and it seems that these two varieties of tang are well suited to aquarium life, and highly recommended. the tank currently contains two yellow tail damsels, one green chromis, a black sailfin algae blennie, a red checkered sand hopper, a pair of percs, a pair of bangai cardinals, and a flame angel. what are your opinions on this addition? would i be pushing my bioload too high? i've considered removing all three damsels( i'm just not looking forward to it). the tank contains mostly softies and LPS, and a couple of clams. please share your opinions/experiences on the suitability of these species to my tank. see my sig for tank specs.