I just tested my pond, first time in quite a while. All levels tested were spot-on except the Nitrite levels. It was as high as my color chart would go. My 3 6" goldfish and 1 7" koi seem to be doing very well but this kinda concerns me. I don't have a bunch of dead plant matter but I am having some algae. I only feed them a small amount every evening. Pond gets full sun and I don't have much shade cover for fish yet. Do have some water iris, one pathetic lily, and a curly plant I'm not sure what it is. These are set just below the surface. Also got some rubbery lily leaves to float on surface trying to make a little shade and protection for my fish. Pond is only 8' x 6' and varying depths up to 3'. Water runs vertically down a 3' tall rock wall.
Should I get some pond salt (don't have a clue about it) or just keep testing for a few days and see if it goes down?
Should I get some pond salt (don't have a clue about it) or just keep testing for a few days and see if it goes down?