Found my emerald crab dead this afternoon. Only thing I could figure out was he didn't get enough food. My parameters are all good. 0.0 NH3, 0 NO2, 30 NO3, 8.1 pH, 8 dkh. Tank is 90 days old. All fish and other inverts(snails and crabs) are doing good. All are fat and active. No new additions and no water change this week. Tank is 125 gal with live rock(virgin, clean rock cycled in tank), I do 20% water change ever other weekend. Using RO/DI water and mixing salt in separate tank. Temps is 77.0. Any chance my diamond goby tried to eat him?
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