ebb and gro Rez ppm

New to the ebb and gro system. Was just wondering with 55gal of RO water for a 48 bucket system, how many ml should i have to add to raise my ppm to 600. Im using canna nutes and was looking at their feeding schedule and according to their schedule it would take somewhere near 500ml but....it only took around 100ml and im just wondering why that is

hey buddy, congrats on the system, we have a thread dedicated in the regular hydro section, this is DWC...on your question just use half strength, as you know your plants will have different nutrient needs during the different stages of growth, take it slow with the nutes. also with RO water you may need to pick up a bottle of cal-mag @5ml/gal