Pond skimmer filters dramatically reduce pond maintenance while blending seamlessly with the surrounding landscape. Pond skimmers continously draw in floating debris such as leaves, pollen and seeds from surrounding plants and trees where they can easily be removed before they sink to the bottom of the pond.
The video above from Aquascape shows how a pond skimmer works, it's features and how well it blend sinto the the surrounding landscape

Ammonia is one of the most common killers of fish. It is the main waste product produced by fish and can become dangerously high from overfeeding, spawning, inadequate filtration or over crowding.
Water lilies are heavy feeders and require regular fertilizing for them to produce abundant blooms. Most fertilizer tablets should be applied directly into the soil at least every monthly during the growing season.