Was checking out the tank the other day and noticed 3 polyps off of my lord frag had receded(will probably die).So,I started checking all the params(normal),did a waterchange,etc..After a couple days,it seemed the coral was still suffering.So last night,after feeding,I was checking in the tank and there they were ripping apart my little frag as well as a Platygyra colony,and a Lobophyllia.I'm gonna try trapping them tonight,anyone got any ideas?