So the way I understand it, a frag is a fragment of a coral (or anemone??) that is typically attached (glued?) to a round plastic (inert?) disk and placed either on your rock-work or bottom. I've also seen tanks where they are put on a small shelf attached to the end glass. As the frag grows, I assume that it starts to attach itself to it's surroundings and the plastic disk become part of it. Am I correct?
TIA<
P.
TIA<
P.
