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I meant to ask about that too! Thanks for spotting that. It isn't in a cycle, I had the pump pointing up to add more ripple to the surface, I can point it down to move in that direction. What causes the cyano to grow?
Just angling the outlet nozzle down, did away with most of the cyano.
The pump puts out flow in the ball park 140+ gph (I can't remember the exact specs). I would think that would be enough - I'll move this to another forum if this becomes more of a problem.