LOL funny....yeah wtf are you talking about mixing a litre of mixed nutes into ya res?No mate the whole nute solution in your res needs to be made up to measure the desired strength. scroggsy.
wHAT CAN I USE AND HOW MUCH UNTILL I CAN GET SOME CAL-MAG? sorry caps lock was stuck on then, i use a complete fertilizer with have trace elements init so how does it get diffent? what would be a good amount of lime and epsom salts to use untill i get some cal-mag?You may need some cal mag during flowering probably, depends whats in your tap water. Scroggsy.