Liming is one of the best and cheapest things you can do in East Texas to improve your pond/lake. What ever your alkalinity test showed that you need - put 2x that amount - especially while you have your water pulled down. If you have any questions regarding this answer - contact Dr. Billy Higginbotham at Texas A & M University Research Station in Overton, Texas at 903/834-6191. He and I regularly speak to pond management issues here in East Texas. We will be speaking tonight (Thurs 5/19) at the Texas Fresh Water Fisheries Center in Athens.
