
Originally Posted by
RayAllen
6ft in lenght minimum for an adult. A baby can live in a 75-100g 4-5ft tank for a while. With tangs the longer the better; 6ft minimum is a good rule of thumb for tangs especially blues, naso, unicorn (tangs with longer oblong bodies versus the round shape of a yellow or scopas)
You wouldnt be asking if you didnt think your tank may be to small. What size aquarium do you have and what size fish are you looking at baby, juvi, adult?
Short answer adult naso 125g minimum, IMO