Originally Posted by reefpercul
Ok the claim of a tang having to be in atleast a 6 feet long or 72" tank is just insane, if you guys visit {edit links} it will tell you what size tank you need to have for the specific tang you want to have, i myself have had a yellow tang and a blue hippo tang in a 40 gallon for over 3 years and they are doing just fine with no sign of getting worse, the smallest size you can have tangs in is a 55 and the only tang wich is really suitable for that size tank is a yellow tang or so the experts say but there is tons of people who have discredit that, i guess thats just playing it safe, in my 120 i have an achilies tang, blue hippo tang, yellow tang, purple tang and sailfing tang and its only 48" long.
i agree with imurnamine here. of course you can keep 3 tangs in a 40 gallon for 3 years but, to most of us, that's really detrimental to the potential growth and quality of life of the fish.