I did a clay background for a 20 gal tank im working on but I just don't like the gray muddy look. I packed coco fiber on clay before but then it ends up looking like a GS background. Has anybody tried anything else? Or maybe just growing a live moss on it but how long would that take? What would be the best kind of moss to grow on the clay? Any other funky options out there? The clay already has 25% coco fiber mixed in it but still very gray.