Oxygenator pond plants submerge under water for water health & clarity
Allow two portions of Oxygenating plants per square metre of surface area.
Ceratophyllum demersum - Hornwort are sent as bareroot portions (loose) as this submerged oxygenating plant floats freely in the water. Drop this into the pond and to find its own depth. No weighting is required.
Oxygenators photosynthesize to produce oxygen during daylight hours which keeps the water fresh.
Submerged oxygenators use dissolved nitrates and mineral salts from the pond water.
Oxygenating plants compete with the algae growth for the nutrients.
Some varieties will also shade the water, depriving the algae cells of sunlight.
Submerged oxygenating plants need to be maintained on a regular basis so that they do not fill more than 30% of the volume of the pond or container pond.
Some oxygenating plants have two types of foliage - one submersed below the water surface and the other on or above the water surface (Ranunculus aquatilis). The foliage will change as the season progresses.