Green water
by Jude Wilde
(Coshocton Ohio , USA)
Jude
Doug says that he really recommends you read the articles here on algae control. Rather than me repeating all the advice about fish, feeding, chemicals, necessary plants, fish densities etc.
You've messed up the ecology. That's why your water is staying green.
The remedy to green water is to understand the system and to figure out what you're doing wrong (small ponds are very hard to keep clean without adequate plant loads) Fish make the situation worse so check out those pages as well.
Good luck. I just don't have enough information to tell you whether the problem is with plants, pumps, fish or combinations of the above.
