Thanks for the info! Immensely helpful, printed this out and took it with me to Home Depot in fact. I honestly just get kind of lost when I'm in that place, so it was helpful to have something of a guide to keep me on track with what I was looking for. I wound up finding a staffer who was actually surprisingly knowledgeable (including knowing what areas he didn't know enough to make recommendations around!), and it turns out he had a chemistry degree and a nephew with snakes.

Thanks again.

Cheers!