Hey all! I've recently got into keeping a reef tank as of about 6 months ago. Currently I have a long wristed hermit crab and a duncan coral, and sadly two snails that have passed. Any tips for an amateur like me? I'm trying my hardest not to be paranoid about everything and micromanage my tank, but with my snails' passings and my coral having two heads die off (despite my crab acting normal and just having changed the water), its hard not to feel like im doing everything wrong.
For context, I went on vacation for a couple weeks and my tank was left in the care of my family, who had the basic understanding of feeding and lighting and such. I came back and my snails were dead, and my Duncan's most mature heads were super icky (also dead, despite the healthy other heads). I could use some reassurance and advice from some of you more experienced people!

For context, I went on vacation for a couple weeks and my tank was left in the care of my family, who had the basic understanding of feeding and lighting and such. I came back and my snails were dead, and my Duncan's most mature heads were super icky (also dead, despite the healthy other heads). I could use some reassurance and advice from some of you more experienced people!

