The bubble coral in this picture just above the yellow watchman is now sitting on the sand and getting sand kicked up on him from my lime green wrasse diving under the sand. As the picture shows it's sitting on a rock ledge in my other 90 Gallon tank I had, but I did eventually move him onto the sand bottom. Now he's on the bottom of my RSM250.
My question: are they ok on the rock work as long as there secure?
