OSS reach a max size of about 6.5" with 4" being more common. They are small sunfish and thus don't produce as much eggs as a BG would. They are capable of spawning multiple times in a year like BG. They are adapted to sub par habitat. In natural conditions they are found in muddy, vegetated backwaters where there is minimal competition with larger Lepomis species.
In my opinion, the best sunfish species to use in a cool water pond fishery as both forage and game fish is the redbreast sunfish RBS or the longear sunfish LES.
