I'm feeding the entire Remo series... (micro, bloom, astro, kelp, candy, and magnical). Right now I'm feeding 7ml/gallon concentration and it's about 1100ppm tds. I'm using ro water that has basically 0ppm. I also use hydroguard and slf100 to help root zone and keep keep salt buildup under control. My biggest challenge has been pH control. For whatever reason I have to mix at about a 5.0 to end up with about 5.8 once it's in the systems. The buckets are not homemade they are gen hydro eco power grower units...Could easily be made though.