ive also got 2 rbta's 1 flourecent green with white speckels, and 4 gbta's still coloring, funny my small black aus, doesnt host anything and i have alot of zoa's as well few shroons, acans. my large and mother of the tank black aus. doesnt host anything either yet, but does touch them driving 2 mis bar true's, and a semi picc. which has been eyeing my 6" dersa. not liking that ending. now my last system i added a green Haddoni, had a pair of misbar black aus, they wouldnt host a bta or lta. only zoa's and african blue xenia. So i added a haddoni. no more carpets