Nice natural looking structure, creative, but I'm not sure that your flt'n island plan has enough open exposure to the water column to get large masses of roots into the pond which is the concept of a flt'n island. Plants will grow in it but will they provide optimum or even good benefit to water quality? If your goal is just to have a novelty island your plan should work okay. The middle zone of roots between holes could become anaerobic.
Last edited by Bill Cody; 05/25/12 10:37 AM.
