Look at pictures of Lyngbya and Pithophora to see if it's any of those. Read the descriptions of each and compare to what's in your pond.

Bill, care to elaborate on those 2 types of algae?


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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).