Quote Originally Posted by jnebgud View Post
Did not know they do not reproduce
They naturally TRY to reproduce, but you need a healthy population of breeding stock for it to succeed. Also, if water conditions are not perfect due to temperature fluctuations, predation by other fish and lack of weed growth which baby northerns use for concealment, natural spawning is rarely successful. Also, I believe most stocked northerns lack the ability to reproduce because they are hybrids.