[Mississauga Ponder]

thanks for your your response. glad to know that it takes 6 months to 2 years.

3 reasons why i was a bit concerned; (1) i was told that it will take only 8-12 weeks. (2) others claim that their ponds never turned green (maybe they have UVs more than they need), and lastly in my previous experience when i was still living in asia it only took about 4 weeks for the water to clarify. the 2 main difference is the size of the pond and the climate/temperature.

in addition i also heard that a pond in virginia took more than a year. there's a pond in california that clarified after 7 months.

from the above i infer that ponds really take time to mature/clarify and the only way you can clarify the water 'synthetically' is to employ a lot of UVs.

i have a question in regards to the sand gravel filter. what made you say that it may be the cause why the water won't clarify?

Quote: Originally Posted by dOHd Green water is a symptom. UV's cover that symptom. Cut of the UV, and the green water is back. Green water is caused by single cell algea that eats food that is in the water. If you kill that algea off, does that eliminate the food as well? Nope. You just piled on another inch of makeup. But on a new pond, without cycled filter materiel or an algea coating on the sides, you need time. Anywhere from 6 months to two years to become mature. And I am not a big fan of sand gravel filters. That might also be why your pond wont clear.