Thread: Green Water
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Old 07-26-2011, 07:40 AM
LawnSite Senior Member
Join Date: Dec 2003
Location: ATLANTA, GA
Posts: 931
Originally Posted by tadpole View Post
First item on your agenda should be to take all of the chemicals and deposit them into the nearest dumpster. The water quality is probably so messed up at this point it may take weeks to get it self-balancing.

If your the pH is between 6.5 - 8.5 leave it alone.

Apparently there are no fish in either pond (at least they are not evident in the photos), so no supplemental bio-conversion is required.

There is also no evidence of any aquatic plantings. This is why you have an algae problem. Plants are an absolute must in ecosystem ponds, for they utilize the nutrients in the water and starve any excessive algae growth. Let's be clear, some algae growth on the submerged surfaces is beneficial as it plays an important part in a healthy biofilm. Algaecides kill the algae, but it remains in the pond and decomposes into the very nutrients that initially caused it.

Adding more bacteria is a waste of time and money. Bacteria DO NOT eat algae and the desired population of nitrifying bacteria has probably long been established.

Bottom line...TOSS THE CHEMS...ADD AQUATIC PLANTS!!! Water will clear on its own given time.
Okay, if I miss a week the PH goes through the roof (past 9). Homeowner doesn't want fish. As far as plants go, what would you recommend? These ponds are very small so what will help without taking over?
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