ok, ok, i know all about tangs and etc etc about how they need room etc...however....a friend of mine had 2 tangs in his 55 gallon, with a huge amount of fish, and i thought the same thing "what? dude they like to swim!" Well, after about 2 years of me telling him he is wrong, i had to eventually shut up. Cant be that bad if his tangs are that old, and seem happy and are thriving.
So i decided to try 3 of them! here is the deal, and it may or may not make a difference, but it's what I have learned about tangs.
They like to dart, yes, and in a quick thought, a 60 hex may seem to small. However, I am a firm believer that any creature will adapt to its surrounds given: their enironment is kept clean and biological parameters are met, and it is fed a healthy diet.
How do I know they have adapted? Ok...well tangs like to dart, but given a lack of complete darting range as far as distance, they have adapted to use the hex shape to their advantage...thats right, they swim AGAINST the flow of my powerheads/pumps around the circumfrence of the tank! They sometimes stop in front of the powerhead and swim against it too.
Its an experiment. My 60 hex is my "experimental tank" in a way. Due to its shape and unique water flow compared to rectangular "boxes", I have found that it allows me to do things you can't normally in a rectangular.
And before anyone says anything else, my tangs are now over a year old. They are healthy, neve rlost their color, and love to swim fast, then they relax, and pick at the LR. They are docile,a nd seemingly happy.
Could be i got lucky with the fish, but it could be water flow, and how well I take care of its water parameters, and the specialized diet i give all the creatures etc.
Whatever it is, it is working, and you cant argue that.