The coco needs to dry some before you water it agin. I try to water lightly in beginning, just around base of Plant. Just a cup at first splashed around , as plant gets a wider profile , my watering gets a lil wider. I use more of a 40% perlite 60 coco so it drys quicker. I grow autos, the light is on the entire grow, by week 3, I water daily. For me it works.