Ok so I've been trying to set up a 125 gal tank for 6 weeks now. I'm finally getting to the point where I can start putting fish in it and I want an ornate bichir. Ive been doing research online and have found people claiming 75g is good enough all the way up to no less than a 6 foot 300g tank.So my question is with a 60 x 18 inch foot print to what size can I keep an ornate before I move it? Thanks in advance.