Snipe and FishinRod- Thanks for the replies. I recalibrated my ph tester and checked it with 7.0 and 4,0 solutions and it was right on with those. The pond water has been at 8.4 the last couple of mornings. The clarity has been staying at about 21" also. I shut off the diffusers just before adding the alum and have left them off since. I believe that the green cloudiness is a planktonic algae bloom and I am considering treating the pond with Cutrine+ and then possibly following up with another alum treatment. i have been reading that the bloom may be adding to the ph level. I also read a comment on this thread where Rainman advised using a Cutrine+ treatment followed by an alum treatment. I used 60 lbs. per acre foot for the first alum treatment and may up it to 100 lbs./ acre foot for the next one, especially if the Cutine+ does not lower the ph. Any further comments or advice?
