High uktuk,
Sorry I didn't read you grow on coco.
Just let it dry out between waterings. Some say that you can not overwater in coco but that is BullShit.
When I grow in coco I start with only 100ml around the plant till she has about 3 nodes. Then she has a more serious root system already and start to become more thirsty.
From there just give water till you have 20% from what you gave as runoff everytime. During vegging you probably only need to water once in the 3 days. And during pre flower and flowering once in the 2 days.
Just look at your plant, look at the coco and lift up the pot when they are still small to feel how a dry pot and how a fresh watered pot feels. This weight is a great indicator and can teach you how often you need to water. But always water with 20% runoff!!!
Happy Growing! 😋
