Backyard Ideas with Rocks
Most pond plants do not need soil to grow. Fish waste and decaying fish food may be enough to meet pond plants' nutritional requirements. If the pond is not stocked with fish or you need a little extra nutrition, a liquid fertilizer formulated for ponds will provide it through the water. Soil can actually increase the growth of bacteria around plant roots. Soil also seeps out of its designated area, muddying pond water and clogging filters.