Was talking in the agressive section about the addition of a clown around some tough triggers....anyways I added one to my tank that has a carpet. The tank raised Clarkii from petco was in the carpet and eatting pellets within 5 minutes. Very cool. If I touch the carpet it is very sticky, but the clown scoots all around it out issue. This carpet has been in my care for over a year and gets indirect light from a window in the spring/summer and direct sun in the fall/winter. My water is far from ideal and lights are weak, but man it is crazy how well this thing does. In the sun it is about 12"-13" wide.