I've been hearing a clicking every week or so since I have had my tank (almost a year). Its usually two clicks in a row (they sound like someone is tapping a coin against glass). I've made sure it isn't any of my equipment (I originally suspected it was the heater turning on and off, but its definatley not that)
I heard it again just a moment ago, two clicks, a pause, two more clicks a pause and then one click.
Do you think this is a mantis shrimp?
I've never seen it, so I'm unsure as to whether this is it.
Is it safe in my FOWLR
Is there a way to catch him to inspect to see if its a goodie or a baddie?
The sound seems to come from the middle of the tank, so I think catching it in a glass on an angle will be hard.