Hi, I’m very new to reefs I got a 5 gallon nano tank for my room with a nice light. * I am sorry to say what I’m about to say*. Setting up the tank I used filtered water from my sink and mixed it with instant ocean and added it to the tank. I saw it said that on the back of the instant ocean package. I added water conditioner to clean the water and it seemed fine. I place live rock in it last night with 4 corals and I woke up this morning to it looking like this. I haven’t tested the water that much but I will get back to you with the readings, though I do not know what to do if they are off. I was misguided in setting up my tank and just want to continue down a right path what should I do. Right now the Xenia looks worse than that, it looks all shriveled up. Thank you sorry so vague