size of tank for tangs...
I'm a diver and I understand the theory behind large tanks for tangs I see them swimming and darting 30 or 40 miles an hour, they are agile and seem to use large areas of the reef as their venue. I have always housed tangs in tanks no larger than 75/gal for years, I had a sail fin in a 46 bow for years until I moved up to a 75/gal, this fish is beautiful and symetrical and seems to be suffering no ill effects from not being housed in a 180 which is what most people think they should be in. I'm not here to debate but rather give some evidence to the contrary. I belonged to R/C for a long time until some of the members came down like the wath of God on a fellow reefer for housing his tang in a smaller tank. I know this is a hot topic and please understand I do not want to offend anyone and when my tangs have outgrown the tank I will donate to friends or family.