Does anyone have any experience with Mantis Shrimp in a tank without sand? I have a smasher species, came in on some live rock. I have plenty of rubble rock, mostly broken up pieces of marco rock that was left over from making my aquascape. The setup is.a 30 breeder display with a 20l sump and a 5 gal fuge between the two, which is his home. The fuge I planned to keep without sand, just cheato and a few lbs of rubble but now that the mantis comes into play i was toying with adding substrate. Id rather not add any, so if someone with more experience with these guys could chime in that would be awesome! Thanks!
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