Salvinia natans is an appealing and attractive floating fern that will grow quickly if given plenty of good light and nutrition. It will naturally multiply and spread on the top of the water.
The leaves are fleshy or spongy to touch and have tiny hairs on them making them water resistant. They are good for preventing algae by shading areas in the aquarium and using up the nutrients in the water.This is a free floating aquatic plant with long attractive roots that hang and flow below it which is ideal for tanks with fry as the long roots offer protection and shelter.
This plant will need maintaining if you have other aquatic plants below it as it may block out light to them. It is ideal in open-top aquariums or tanks with good ventilation otherwise the leaves may dry up under the lights. This plant is not keen on being splashed with water so avoid placing them from a swift water flow or current.