I have cycled my 55 gallon for about 10 weeks (canister filter)-- 5 snails-- I coral banded shrimp-- and I had one domino-- 50 lbs base rock-- 30 lbs live rock-- bare bottom floor-- no coral yet b/c I was trying to finish cycling the tank-- all levels are perfect except my Nitrates-- My nitrates are very high-- yesterday my domino died-- had him for about 1 week-- he was breathing fine and eating alot-- then he hid in the rock for a whole day-- and then he died-- I can't figure out what happened-- Any ideas?
Snail and shrimp are fine-- I can't understand it-- surely the high nitrates didn't kill the damsel---