Thanks everyone, before starting this project I had kept FW
tanks for about 3 years, so I've had quite a few fish die on me (especially in quarantine). I try to do the best I can to treat them, but when a fish dies I don't beat myself up about it (when I first started I kind of did lol).
In other news, I'm starting to gather the parts to build a DIY top-off system for my display tank. I've been entertaining the idea for a while, but now I've committed myself to it. I find myself having to top off somewhat frequently, and the fluctuations in salinity, while minor, kind of annoy me. So hopefully with this system I'll be able to keep things more stable AND do less work. I'll keep you guys updated on that project as it progresses.
I'm also thinking about getting my first coral for the 75G. Something really hardy, I was thinking maybe a mushroom but I'm open to suggestions. I'll check all my water parameters before doing so though.