So for the past 6 months I have been buying my water from Neptune's. That really hasn't been an issue since I've only had my Biocube 16 and Neptune's is right down the street from me. Now that i have my larger tank up and running I'm not really liking the thought of lugging around 20 gallon in my car every week. I have an RO/DI setup so thats not an issue. Looking online at salts is kind of overwhelming. My question is what salts does everyone use and why do you use that brand. Any tips would be greatly appreciated also seeing I've never mixed my own salt water before.