hey there guys im new to the whole hydro set up as i just used good old soil and light with no feeds, but i have just bought an oxypot set up. i have a free sample of magne/cal from plant magic and a 1 kg tub of j.arthur bowers all purpose plant food ( granular ). am i able to grind down the all purpose food into my oxypot and how often??? im new to the whole hydro-ponics so constructive critism or general help is much appreciated.
peace.
peace.