The dual airstone would be the easiest route to take, I'm going to do that this year when I put the diffuser in deeper water - I'll shut the air to that one off during the winter and run the one in 5' deep water for the winter.


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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).