Take a look at the growth technology website, full instructions there.
I am doing my first grow with coco at the moment and am at day 6 of 12/12 after 5 weeks veg.
If interested my feeding schedule was, once the plants were established at about 6ins high, an ec of 1.5 and ph of 6 as it says on the bottle and using ionic grow have kept it at that throughout.
I started with a ph of 6.2 but when I changed it down to 5.9 they just took off and at the moment on day 6 they are on ph5.9 and ec 17, I will probably go up to 20 in a couple of weeks and then bring it back down towards the end.
So far I am amazed how well they all look, far better than compost
good luck