When we bought our house last year, it came with a very large pond. The previous owners had a few koi in it and a super small fountain with submerged pump in the center. The water was totally black and the bottom had a few inches of sludge.
Recently we decided to clear it all out. We drained it, resealed and painted the concrete and added a larger pump, sand filter as well as a skimmer and waterfall. Granted there are a few cosmetic things we still have planned we filled it... And for a few days it was crystal clear.
Now it has turned green and I can't seem to clear it. Once a week I backwash the filter and it's definitely working, is it not enough? I have tried an algae fix but it didn't even touch it.
So my question is what am I missing. Or what do I need to do or add to fix this. We only have a few fish, I am afraid to add more with the water this way.
Thanks for your help.
Recently we decided to clear it all out. We drained it, resealed and painted the concrete and added a larger pump, sand filter as well as a skimmer and waterfall. Granted there are a few cosmetic things we still have planned we filled it... And for a few days it was crystal clear.
Now it has turned green and I can't seem to clear it. Once a week I backwash the filter and it's definitely working, is it not enough? I have tried an algae fix but it didn't even touch it.
So my question is what am I missing. Or what do I need to do or add to fix this. We only have a few fish, I am afraid to add more with the water this way.
Thanks for your help.