my water parameters are with-in normal limits, all very good. There in the bottom area of my tank, on a rock. I have 150 wat 20k metal hal lights. everything else in my tank is doing really good. The other ricordea I got next to it is doing great. This one is just all the sudden not. Was the most pretty one...even has 2 mouths on it now...what should I do? Could it be getting too much light? maybe should I put it in the shade?