I've heard the GreenClean algae killer actually increases oxygen as it deteriorates in the water and is supposed to be very effective at killing algae, as well as not losing any threat to fish, but it's pretty expensive. Trying to do a large pond may be cost restricting.

Last edited by Mike Whatley; 04/24/19 04:09 PM.
.10 surface acre pond, 10.5 foot deep. SW LA. The epitome of a mutt pond. BG, LMB, GSF, RES, BH, Warmouth, Longear Sunfish, Gambusia,Mud Minnows, Crappie, and now shiners!!...I subscribe!!