So, last night I got home from my week trip to Vegas and my tank looked off; a lot of corals closed up, and an unusually large amount of algae on the front glass, and some nuisance algae cropping up on the rocks. \n\nI checked the salinity, and it's at 1.034!!! I've been slowly lowering it back to normal.\nWhat I think happened is my recent dosing of mag was bringing up the salinity way more than I expected. Right before I left I noticed my two serpent stars had crawled out into the open (unusual) and stopped moving (died). Now my urchin hasn't been moving and I think it's dead too. I can only spot one of my hermits, none of my turbo snails nor any nass snails. I'm about to check my levels, but I think the algae is from the dying animals releasing nutrients? \n\nI'm prepping a water change now.\n\nI'm about to leave on another trip for 2-3 weeks, so I'm thinking I should buy some replacement CuC before I leave. My girlfriend can't do much more than feed/top off in my absence.