So...I'm currently housing a jaguar cichlid...about 8 inches...in a 75 gallon. Not sure of the sex. Anyway....I'm reading EVERYWHERE that it needs a 125 gallon as a full sized adult so it can comfortably turn around? Fair enough. I will be searching out the local craigslist for a future home...but wait!!!....the widths of both the 75 and 125 are both 19 inches. So what's the scoop?