Big Bloom comes in a hydro formula also, so I'd say you shouldn't use the soil one. The others don't have hydro counterparts so I'd assume they work well in either application.
redtails Reviewed by redtails on . Fox Farms I have the fox farms grow big, big bloom, and tiger bloom system for my soil plants. Are you able to use this liquid product in a hydroponic system?(DWC) Rating: 5