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crustacean catching tips

  1. General Reef Discussion
    I have a 55g with alot of liverock. will post pics of the tank soon. I bought 4 emerald crabs about 6 months ago because i was told they were great for algae maintenance, which they are, but there is only one remaining crab. I call him the hulk because he is about 2.5 -3.0 inches from leg tip to...