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Have had a pond for 15 years. For the first 10 years, my pond was about 2,500 gallons - with no filtration - just a fountain. My water hyacinth grew fine - although the water was smelly and gross. Five years ago, i rebuilt the pond (to about 4,000 gallons) and added a skimmer, and biological filtration. The water doesn't smell - although it is still green (I probably need a UV light) and it looks better. But - every year the water hyacinth slowly die off. They grow for the first two weeks or so, and then stop - and then slowly turn brown.
This has happened repeatedly for 5 years - I have no idea what the problem can be. Everyone else says that they grow like weeds. Mine used to - but now with the bigger pond, they don't.
I only have a few small koi (all the big ones died a few years ago from a heron) - so i know it isn't that the fish are hurting the plants.
Please help.
This has happened repeatedly for 5 years - I have no idea what the problem can be. Everyone else says that they grow like weeds. Mine used to - but now with the bigger pond, they don't.
I only have a few small koi (all the big ones died a few years ago from a heron) - so i know it isn't that the fish are hurting the plants.
Please help.