So my current LFS is being a bit unreliable with my salinity and i've been interested in mixing my own salt for a while now. i currently have a 20g nano reef with a 10g sump, but i'm going to be upgrading soon to a 120ish gallon reef. I'd like to know what a good RODI unit is that won't break the bank but isn't gonna be awful. Also if you could recommend brands of salt it would be appreciated. Thanks!