The link didn't show the diy aeration.

You might know this stuff but I'll post it anyway. Clear water is seldom productive water for fish. You should have about 18 to 24 inches of clarity. It all starts with phytoplankton(microscopic plants) that is fed on by zooplankton microscopic bugs). The zoo is eaten by the next size bugs which is eaten by bigger bugs until the bigger bug is eaten by a tiny fish. They are, in turn, eaten by successively fish up the food chain.

The phyto needs to be numerous enough to keep that visibility to the 18 to 24 inches. They/it is the bottom of the food chain.

It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP