Anyone have any long term experience with these guys? They are supposed to get very large (a foot+). However I have came across a couple of articles of people who keep them in "display" tanks that are very well maintained 200g+ and they seem to max out around 7-8 inches. I have 3 in my 180g and would like to get a couple more (they are schooling fish), but I have always thought even that tank size would be too small for more.