From the standpoint of being a good ecological neighbor, you need to think of pond balance. I'm speaking of a balance of predator and prey or forage base to feed the bass and catfish at the top of the food chain. Consider the cycle of life that starts with phytoplankton that are fed on by zooplankton, that are eaten by tiny pond bugs, and so on up to the bass and catfish.

Regarding water quality, the pond dye inhibits the production of the phyto and everything goes south without them. Once you stop messing with the bottom of the food chain, ask yourself what the top of the food chain will eat. The frogs live on the side of the pond, not in it. The HBG don't provide an ongoing forage base. They're almost sterile. That takes bluegill and you don't have them. The fatheads are too small to really provide the protien that a predator needs. A bass needs 10 pounds of forage to gain one pound of weight. They have to burn a lot of protien to catch enough minnows to be healthy and growing.

A fountain is beautiful and a joy to look at but it doesn't really provide aeration from the bottom to the top or really through the water column where it is needed.

You didn't say just how big this pond is. That is important to determine the next step to rectify your situation. Please do not consider my response as condescending. I, and most others here, made many more mistakes than you on my/our first pond(s).

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 Grandpa