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I took a 4-month break from saltwater fish keeping and during that time around 30% of my tank's water evaporated. At the time there was no fish in the tank as I had sold them, and the only guys left were a small number of hermit crabs that I couldn't get out. I left my lights off during this time, so all my algae died too. I kept my filters running though so I was wondering now that I've returned could I just add fish in? Slowly at first obviously but I was wondering if BB could die since my salinity levels were really high. (Prior to my break the tank had been running for around 1 1/2 years.)