Chris is correct. Don't buy or choose the submerged vegetation primarily as oxygenators. Oxygenators are primarily sold for small scale water gardeners. Your phytoplankton and attached algae are the main oxygenators in pond-lake settings and are usually ubiquitous, diverse, and always present when algacides are not regularly used. Choose submerged plants for non-invasive nature, loose open underwater structure and for the ability of the fish to move or hunt through the plants.

Last edited by Bill Cody; 06/14/09 01:49 PM.

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