One pointer: Don't shut down the well too soon in the fall or wait too long in the spring to crank it up if your fish are large. Water temp may be fine along with D.O. but you could have some ammonia, nitrites, and nitrate issues as nitrification is not up to par due to lower temps, but your fish continue to produce ammonia and their waste products do the same.
An easy way to determine this is with a simple API aquarium test kit.
Unlike other species trout are not only more sensitive to ammonia and nitrites but also more sensitive to nitrates that can build up due to no water exchange.
Last edited by Cecil Baird1; 03/17/13 05:45 PM.
