Pond Boss Forums STOCKING A NEW POND Types of fish to choose New guy and new SoIN pond

PaulFNG - Limited aeration and depth of mixing. Diffusers on pedestals to my experience do not mix water across the lower bottom areas due mainly to the temperature gradient water density differences. What do you think is going to happen to all the sunken leaf drop from all the trees surrounding your pond?. In similar situations I have seen up to 1 ft of leaves accumulate each year in a pond. To get sunken leaves to even come close to decomposing in one year, lots of full depth pond aeration is needed. Thick layers of sunken leaves causes 'unnatural' amounts of dissolved oxygen consumption from the overlying water.

Decomposition without DO causes anoxic black sediments especially below the leaf layer that very slowly(-30-40X) decay and produce toxic hydrogen sulfide gas that is uninhabitable to invertebrate decomposers.