I have a local acquaintance that I have bought nice F1 Tropheus from who has between 15-20 Petrochromis Moshi fry 3-4 inches at a very fair price. I am tempted to dive into the nether and try and keep a group of Petros as my new 180 tank stocking. I can keep up with Tropheus, but I have heard that Petros are Tropheus on speed and steroids. Moshi are one of the more aggressive varieties...but that yellow. What are your thoughts?