Sorry to hijack, but I bought a rock of yumas that look exactly like those. I bought the rock full of them, but it seems they are slowly wasting away. I've tried them in a whole bunch of places in the tank, and nothing seems to help. I thought these were supposed to be bulletproof?
They're currently at the bottom of a 30"H tank lit by three 250W 10K MHs. Should I try moving them to my other tank, which is 24"H with 4 54W PC's? Less flow as well than in the current tank.
They're so pretty, I don't want to lose them.