in veg i start lower,i work it up to the 5 per gallon by about day 30,,with the smaller plants not getting watered as much or as often there seems to be enough to keep em happy,as they get bigger and start getting watered every day/other day they will start needing more,it may be because i grow in two gallon fabric bags and the wet dry cycle happens more often,,all i have as a comparison is a recent test grow where i wasnt adding cali-magic and i had issues...you already know that coco does require a bit mor calmag,and if using LED that need increases even more,work your way up and find what keeps the plant happy,we all usually run different strains at the same time and some strains need different amounts of all nutes,