WATER LETTUCE
Water lettuce is a valuable oxygenator. They are great for cleaning the water of decomposition byproducts, keeping water healthy and clear for fish and reducing algae by using up the nutrients needed for the algae to bloom. Fish loves hiding under these plants and eating the micro-organisms in the root. 50 cents each, min buy of $5. Pick up Ferryden Park. If ad is up, it's still available.