Thanks for the feedback. I have lost a number of animals over the last several months.
Losses include: 5 or 6 hermit crabs, 1 blenny, 2or3(not sure) snails, and one sand sifting star fish had two arms ripped off and died. All appeared to be at least partly eaten.
Large oversized skimmer Aqua-Medic
250lbs. live rock
Various snails and clean-up crabs
1 sally lightfoot crab
1 arrow crab