i had a sohol in a 180 with a blond naso,purple,2 yellows,ad various schooling fish.after 2 years the sohol started darting aroun tank periodically slamming into large acros and breaking branches off.this happened for about 2 months after which i trapped the fish.sold him to fish store.dont regret it.others have had better luck than i with sohols.pretty fish but aggressive