i dont know what to do

I’m new to this hobby and have only had a saltwater aquarium for a couple of months. I have a problem, I can’t keep anything alive, I don’t know what to do. I think to give you guys an understanding of my problem. I started with two clowns after my tank was cycled. It didn’t take long before one...

Just curious if anyone can give me an idea as to why my anenome is shriveled up. I have a mixed reef RS350 with two LED 90, reef octopus skimmer, reef mat 500, 25w UV filter, stocked refugium with a refugium led that runs opposite my display leds, 4 doser that I dose all the foundation elements...

I got this yesterday put it in the tank and everything looked amazing go to sleep and wake up to this what should I do