I need to be able to see my sick fish so I finally resorted to using Algaefix since the bacteria is not yet established enough to fight it. I was a little skeptical it would work but after just a few hours I was able to see less green water. The only down side to algaefix is that it lowers oxygen in the water. So I turned my jets skyward and let them act like fountains for a few days. I under-dosed it and I also assume I need to get the dead algae out of the water so it doesn’t act as food for the next bloom. The waterco multicyclone prefilter seems to be doing this fairly well and has about an inch of stuff on the bottom. I cleaned it out on Sunday so this is all new “debris”. To the right is a link to amazon which sells Algaefix if you do not have a pond supply store or pet store in your area.
Update: after 5 days I can see the bottom clearly.
UPDATE: I have used this product 3 times this summer. It works too well. It even kills the algae growing on the waterfall which is a form of string algae that I like. After a few weeks or after a big rain my pond water turns green again until the string algae can regrow then it begins to balance things out again. Does not seem to have any affect on the fish. Caution should be used in high summer heat so you do not drop oxygen levels too low.
