Fermin is that Rotala? Yours looks so nice and green and healthy. I am not having much luck with mine. It keeps pupping out of the substrate and floating and the stuff that is staying in is sort of yellow in areas and just looks rough. Do you use Root tabs for yours?
Here is my tank. Sorry about the flash against the glass and the ugly string holding my java fern on. I just thought it would look better if it sort of matched the wood. lol I guess I can take it off as soon as the Java fern is stuck on the driftwood really good. The plants have filled out a lot since this picture and I have added a few more Camboba and Anacharis