I have been lurking for a couple of months. I finally decided to join, so here is my introduction. I live in Southeastern OH. I moved here with my family in the first week of September. The house I bought came with an 1100 gal pond built into the hillside. It had not been well maintained for a number of years. But it was one of the reasons I bought the house. Its pump was broken when I took ownership. So I replaced the pump with a larger pump that also came in a filter box and added 9 goldfish (they came with the pump). Then I talked to my neighbor about how to take care of it. He told me I needed to remove all the debris and extra organic material. I did the best I could without some kind of vacume. I took out three buckets of overgrown and decomposing root balls (save some for the next year, by re-sinking it). I pulled out a big pile of string algae, and have cleaned out the filter four times since the middle of October. Algae grows on the waterfall and its about 1/16 th of an inch deep in places. I've treated the pond a few times for algae and that kills off the algae on the rocks (I remove it by hand once its dead). Here are a few pictures of the pond. Its 8ft long, 4ft wide. It has three tiers to the depth. Its got a 18" shelf that's 2.5 ft deep, then it drops to 4 ft, and it looks to be another foot deeper under the waterfall. The back of the pond is about 9-12" behind the waterfall. The top of the waterfall is just the 1" corrugated piping from the pump jammed into the rocks and held in place by their weight. The line extends up behind and beneath the waterfall. I still need to trim the second set of grass that you see in the pictures. At the end of a stressful day I walk out my porch and watch the fish swim. I'm keeping the waterfall running to keep the ice open so the gasses can be exchanged. Here is a picture from the patio area. That is my dog Daisy Here is a close up of the waterfall. You can see some of the fish. Next year, I'd like to fully clean out the rest of the debris to get the pond back to its full depth. I'd like to rebuild the waterfall to include a basin instead of just the pipe at the top. I'd also like to add a small stream above with a small pond that I could build a platform next to for sitting or do meditative exercise. I'd also like to replace the brick with standard wall toppers to make it look nicer. As money allows, I'd even like to put in a better pump and filter mechanism so I can add koi to the gold fish and frogs living in the pond currently.