I was wondering if i could keep a large mouth bass in my 90 gallon aquarium and feed him natural food i would never release him back into the wild.I don't know if my age would make a difference (i am 12) thx -Isaac
No. When you catch a fish you must either let it go or kill it. You cannot take it home and keep it in an aquarium.
Holding Live Fish (page 53 of the 2013 Fishing Regulations):
No permit is required to keep game fish alive that have legally been reduced to possession, in a live well, net or on a stringer while at the body of water from which they were taken.
BUT...All fish must be killed or released prior to leaving the water body.