How are we suppost to study them if we can not keep them in captivity, and can not tag them in the wild because of their size and the aquariums that have open water filtraition system's that have succes's with them are not willing to study them because of the cost. They do deserve the best as do all fish but they are another obstice that the marine aquarius have to overcome. If you reasearch them you find it is possible to keep them for an extended number of years. You need to have time and experence. The way of feeding them is tricky but can be done because in the wild they are bold grasers but in captivity the become shy. In groups of odd numbers and some type of algy pasted on to a piece of rock they become grasers again. Thats just my reasearch and i have yet the experence to even consider one or 3 but i belive it can be done.
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