Water Gardening: Need to enlarge, add 2nd or do something, 4 by ApopkaJohn

ApopkaJohn wrote:
You have an Old pond and plan to build a New one... Use the old pond as a "filter" to grow your aquatic plants, and keep the new one for your pet fish, then you could circulate round and round.

Here is central Florida, they are pumping phosphate laden water from Lake Apopka into a marsh "flow way" to filter out extra nutrients. Idea is to clean water before they send it up the St. John's river on the way to Jacksonville.

Picture one show the "before" where the muck farms were draining their nutrients into the Lake 1950-1995
(that's alot of years) Pics from web:
Second picture shows the plan to filter the water after they closed down the farms.
Third picture shows the green water going into filter and the blue water coming out.
Last picture shows how bad the algae bloom is in the summer. Water quality has improved about 10% so far.

http://www.sjrwmd.com/recreationguide/lakeapopka/