Hello! I purchased a Biocube 32 on fb marketplace for my son, the tank had 2 clowns, 2 camel shrimp, a long spiked sea urchin, a few zombie snails and a few hermits red and blue, a few muscles, there is also dead coral that is now coming back to life, the inhabitants were all healthy but the tank itself was somewhat neglected, after getting it cleaned up and getting the water parameters in range I began noticing new inhabitants (Hitchhiker's), a small nubby sea urchin with soft rounded spines and thin black tentacles that are difficult to see unless in the right light, a red emerald crab( I forget the technical name) and now a lime green Mantis shrimp only about an inch long. The problem lies in that I've added to my CUC 5 blue hermits, 1 striped serpent star and a pistol shrimp/watchman goby pair. The Mantis takes pellets/brine shrimp and kept to himself with its only interaction among tank mates having been avoiding being seen by the passing clowns, the pistol shrimp went right to work creating a labyrinth of tunnels and caves beneath the rock until I witnessed my new beautiful baby lime green mantis actively stalking and hunting the pistol, it pounced and I heard two snaps I'm assuming one from each shrimp (SHOTS FIRED) a once peaceful and nice neighborhood now turned upside down with the sounds of shots ringing and puffs of sand and debris clouding the once pristine water column, not to mention me! the huge ghetto bird lifting the roof to their house trying to apprehend the suspect of course to no avail (slippery little sucker) and I don't want to tear the tank down to remove the mantis so I plan to set a rudimentary trap and wait it out, however my son and I love the pistol goby duo and are concerned for their safety. The mantis only targets the slightly larger pistol shrimp, pays no mind to the equally sized goby or camel shrimp or anything else really he just seems to hate the pistol for some reason (territorial) my question is: do you think the slightly smaller mantis will kill the pistol or will they eventually work it out and establish their own territory? As of now the mantis went from peaking out of his one hole in a rock to restlessly roaming the cave system built by our buddy dozer the pistol shrimp apparently unhappy with every new territory that it's overthrown.
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