This is very interesting. I think an important thing to tell people is what type of salt was used to acheive the salinity. Was it synthetic sea salt or rock salt? If it was synthetic sea salt, won't this alter the pH dramatically since marine conditions have higher pH requirements. Finally, if anyone was to try this, PLEASE make sure the salt has been fully dissolved for at least 24 hours before placing the animal in. Undissolved sea salt is very deadly to marine fish in my experience. Thanks for sharing your experience.