If your fish appear to have all sizes of BG 2" through 8" & several sizes of bass then the pond likely does not have previous low DO issues and the chances of fish kills are low due to low numbers of or rare low DO occurrences. The underground water flowing into the pond will likely keep water flowing to be helpful enough to minimize low DO conditions.

Idea - Gast brand rotary vane(RV) compressors 1/4hp have dual voltage ability 220 and 110 depending on how wiring is arranged. They run quieter compared to dual head rocking piston compressors. Could put compressor in a homemade shelter at the pond 240V. At 12 ft deep you do not need a compressor that normally operates more than 10psi; as your 12ft deep pond needs just 6psi.

Last edited by Bill Cody; 11/27/24 11:32 AM.

aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
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