Yes water/feed the entire pot to 10-20% runnoff when ever you do water. When plants are young I start with once a week to runnoff second week is 3-4 days apart from feeding by week 3 and 4 I am feeding once a day then in flower it’s multiple times a day coco for cannabis is a really good resource for this.
You do not need to fertigate coco every day when the plants are small but you must water the entire pot to 20% run-off any day that you do fertigate. It is all about keeping the cation exchange in the coco in equilibrium. If you only partially fertigate salt build up begins immediately. You almost cannot over water coco
ah okay that makes sense, my only issue is that im gonna have to spend a TON of money on nutrients then which is something i was wanting to avoid. each pot take around 12L of water. thats a lot of nutrients :\