Call me selfish but why the hell did my wife go and get sick/crippled with this pinched nerve?

I'm stuck with the dayhome while she sees her doctor. I'd love to sneak out tonight but I'm Mr. Mom right now!
The plan is to just pickup a few chromis. They're cheap and some of my favorite fish. I was thinking 3? Anyone have an issue/suggestion related to that?
Once they settle in and ace my water with poopFood I'll maybe get a coral or two?