I'm now getting back into keeping fish and saw an ornate bichir for sale. I got a couple questions. I currently have a 55 gal. and pretty sure it couldn't stay in it forever, but could use it until I get a larger tank. The bichir is not nearly full grown yet. I'm guessing its only about 6 in. long right now. I have heard they get 2 1/2 to 3 ft. long. What is the minimum size tank I can keep one in comfortably?