 Be sure your waters is ok
HI,
I have seen mine react to changes in water quality, even the slightest shift seems to irritate them.
Be sure your water is staying clean and being skimmed well.
I try to feed a phyto plankton twice week for all my inverts they really show some impovement after that.
I usally shut down the returns and the skimmers to allow some contact time maybe an hour I leave the penguins/powerheads running cause they help keep the water moving while not filterng out the micro plankton this improves the contact time.My favorite phot is the freeze dried one I get at that marine depot.
Most canister filters will filter out the food real fast, ditto for skimmers they suck the plankton out in about an hour. If you have a sock or a pad it will too.
IF you have any undesirable nitrates or nitrite or NH3 inverts really suffer.
My hermits usally warn me by not moving around or hidding , if my canisters need cleaning or the skimmer stop skimming cause the veturi's are dirrty.
Is a constant job keeping those things working at their peak.
Doug
_________
55 GAL OP, 37 GAL SEA HORSE TANK, 5 CLARKI,
2 MARRONS,2 SERPANT STAR,1 RANDALL PISTOL,NUMEROUS HERMITS,2 SKUNKS,
4 PEPERMINT,1 ANAEMONE, SEVERAL SOFT CORALS, 2 ADULT W/C SEA HORSES,8 CHROMIS.
1 B 1 LM BLEEMY,1 WATCHMAN,1 TRUE PERCULA, 2 TANGs, 1 gold angel 1 ROYAL BEAUTY. 1 20 GAL SUMP WITH 1skimmer, 1 fluidized sand filter,
REFORGIUM, AND DSB IN MAIN AND SUMP, right handed hermits. | 
