So I work at a fish store and I've been trying to start up a saltwater tank, and I just so happened to have a customer wonder if I'd take his 20g reef tank and I jumped at the opportunity. Everything included (livestock, rock, maintenance) I was just wondering if I could get some help with the scaling of salt and water mixture for such a small tank. I'll be picking up the tank in about a week and I'd like to learn as much as possible about maintenance. I've heard that you can't keep your tank in an inconsistent room temp, or that you shouldn't keep it by a window. I was also looking for a few tips or tricks that you've gathered. Anyone able to help?

