Benefits above the substrate
Floating plants can provide shade, absorb nutrients, and create hanging roots that shrimp inspect. They can be useful when the aquarium has bright lighting or limited planted area.
Different species grow at different speeds and have different light needs. Choose plants that fit the cover and maintenance you want.
Prevent surface blockage
Thin floating growth regularly and keep an open area above the filter outlet. A fully covered surface can limit gas exchange and make equipment harder to inspect.
If plant roots become tangled with tubing or intake guards, trim them carefully rather than letting flow decline.
For your own tank
Use a floating ring or open channel if the plants drift over the filter outlet. Thin the roots when they become dense, and watch for reduced surface movement. Floating plants can be helpful cover, but they should not prevent routine inspection or gas exchange.
Use these as general hobby references. Test your aquarium and confirm product guidance before making changes.
