Pond Boss Forums MANAGING AN EXISTING POND Corrective stocking Old pond, new pond keeper

Stephen,

My questions on muck and pond circulation are do to concerns you may have a toxic layer of water in the pond where fish cannot survive. Without significant circulation and a lot of leaves and other organic material entering the pond, over time anaerobic bacteria will build up in the muck (layer of decomposing organic stuff) and create a layer of water above the muck that is a "dead zone." That layer of bad water can be several feet thick. There are many threads here that discuss that. IF you have that problem, you will probably need to address that before you can have a thriving fish population.

Again, I am not a pro, just my 1 cent