I've herd for a good ground covering u can use riccia fluitans.Here are the instructions of how to do it..
Species Specific Instructions:
Riccia fluitans: This details a method that I use to take a floating plant and force it's growth submersed. I have a sort of love hate affair with Riccia fluitans. I love the "feel" it gives to a tank, I especially like soft mounds of Riccia fluitans in the foreground. The "hate" part comes from the mess that Riccia fluitans causes. All it takes is a few small pieces to "escape" and you end up with Riccia fluitans growing in your other plants and tons of it floating on the surface and blocking filter inlet strainers.
I've started using a method that seems to help cut down on the mess part and still allows my cherished mounds. Here's a step by step of how I do it.
I purchase these little needlepoint plastic grids at a craft store. A bag with several shapes and sizes was about $2.00.
Thankfully the shapes come in pairs. I take a portion of Riccia and spread it thinly across the top of one of the grid pieces.
Then I take the other same size grid and place on top of the Riccia and staple the two grids together making a Riccia sandwich.
These are then placed in the tank and weighed down with rocks.
Given plenty of light and CO2 you will have and incrediblely beautiful pearling mound of Riccia in a few short weeks.
The great thing about the grided Riccia is you can remove them from the tank for trimming so that you don't make a huge mess in the tank. And the grided mounds of Riccia can be easily moved if you want to change the look of your aquascape. Note that Glossostigma is a great companion plant that works really well with Riccia and can be used to "hold" it down....maintenance does increase significantly when doing this though.
Btw it's copyied and pasted of another website..
ollie
