Can this Dat thrive in fresh water? What size tank does he need to start at 2 inches? Would he be OK in a 55 gallon with two other fish one 3 inches and one 5 inches for a little while? How long till he outgrows that space? I have an empty 90 gallon.
http://www.liveaquaria.com/product/prod_Display.cfm?pCatId=2695
http://www.liveaquaria.com/product/prod_Display.cfm?pCatId=2695