Amen to that. Mine was less severe. I made "slight" adjustments to it, observed it for a while then went downstairs for dinner. Came back upstairs and the fish were gasping at the surface. Even the Amano was swimming near the top. The ceramic diffuser looked like an air stone on steroids. DC
was bright yellow. I shut off the solenoid and did a huge water change. That was months ago and have not touched it since.
I guess do adjustments on a day you will be around and do them early in the day.
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