Agreed - you can probably do a search on my nightmare experience. Bought a $75 mantis shrimp. Got him home and tested water before acclimation and it was ridiculous high (if memory serves, around1.030). Refused to take it back even same day! Mantis removed both appendages during acclimation due to stress. They measured their store salinity with a swing arm hydrometer and insisted their readings were correct. Terrible practices, terrible customer service.