I've had a clicking sound in my tank since adding live rock. Normally its a single click, occasionally one then another. I'm still not sure if its a pistol shrimp or a mantis shrimp. When moving the live rocks to the tank I did see a red/brown colored shrimp like creature, but did not see it close enough to identify if it was or was not a shrimp. I have not seen anything shrimp like moving about, but I look every night.
Have not lost any creatures that I can see only have 2 small damsels and a fairly large emerald crab.
I'm not sure I want to tear the whole tank a part to try to find whatever is making the noise.
Any thoughts?? Just wait it out???