Tiger muskie are typical sterile and would be a good option for multiple fish in a small pond - plus they look unique

Chain Pickerel usually don't grow very large (about 3lbs and 24ish) and might be a good option as well. At that size the gap is close to that of a LMB


Mat Peirce
1.25 acre southeast Iowa pond
LMB, BG, YP, WE, HSB, RES, BCP