I took a peek into my sump the other day and noticed that my brittle and serpent start weren't looking too good. The large serpent had dropped a couple legs and the brittle stars' body looks like it dissolved. The real creepy thing is that they're both still alive :fun5: Two sally lightfoot crabs are also dead in the same system but all hermits, snails and urchins seem fine. Fish and corals also look fine along with my shrimp. Any ideas as to what has happened?