They are in my 14g that I started off in. Every frag I’ve had up until I got my 50 up has been in this tank. I have kept it going and kind of ignoring it except topping off evaporation. At this point it’s it’s own ecosystem of copapods, a little algae, snails and hermit. I also just descovered a new stomatella in there that I have no clue where it came from. I was planning on breaking it down and putting all the rock in the sump of my 50 until I saw these buggers. I feel this tank is just evolving new life on its own now.Any idea of the origin? Did you recently get the frag plug in the photo?