I hope someone has some advice for me. I dug a pond about six weeks ago. It's about 5' x 7', and about 3' deep at it's very deepest. The edges have an 18" shelf, and there are two "steps" leading to the deep end that are about 2' and 2 1/2' deep. So while the pond is small area-wise, it's fairly deep overall. I am in Connecticut, and I wanted a deep end for the winters. I used a pond liner to line it, and there are some small rocks on the bottom for decoration/egg laying purposes, although whether that helps or is even necessary, I'm not sure. I have four Shubunkin goldfish, about 6"-7" long. The pond is situated in full-sun, and I have a Pondmaster 1250 pump and fountain on the bottom. I have a few plants in it, including some kind of floating plants that look like green balls stuck together, lol. One just had purple blooms, I'm not sure what they are called. However, the pond continually turns green, so green with algae that we can barely see the fish. I put Microbelift-PL into the pond starting 3 weeks ago, and keep adding to it each week, but that hasn't worked. Since then I ended up draining half the pond and refilling it, in an effort to clean the pond a bit. (ad added something to get rid of the chlorine in the process, too) The algae is not stringy, just kind of sludgy. Does anyone have any other suggestions?
Here is a pic from about a month ago: