First of all, if and I mean IF!!!!!! You manage to keep a Largemouth Bass LONG enough to even reach its max size then you would probably need an outdoor pond.
But quit honestly I still have a 4 inch Largemouth and its been like 6 months already and I am still to this day not sure where everyone gets this idea that they will reach the size of a basketball player in one year (Sarcasm)
I would recommend not over feeding the Bass, I usually feed my Bass like once a week. This maybe the reason why he isn't growing at AMAZING rates LMAO.
But in any case you'll do fine with a 75 Gallon tank , until he outgrows it, which in my opinion will be a few years from now.
Honestly, like I said before first try to keep the fish alive then after that try to keep the fish alive and once you keep the fish alive then see how the growth rate falls in on your little beast. If he grows super fast then prepare the upgrade if not, then relax and enjoy the show.
I still have a Largemouth Bass and a Channel Cat in my 75 Gallon tank, and people here swore that they would outgrow my tank like 4 months ago HAHAHA
The Channel Cat is still only 7 inches and the Largemouth is only 4 Inches. I rest my case!
I've grown both of those fish at an inch a month. Just goes to show how different individual fish can be in growth. Of course, I fed mine every day with cichlid pellets and a couple large pregnant gambusia caught in my backyard. That might be why mine grew so fast.
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