I use neem oil once a week as a foliar and drench, completely staves off any pest in my experience. And will kill any gnats if you already have them.Make sure to pasteurize your coco. Fungus gnats are common in coco. You can also add microbes like OG biowar foliar pack as a drench to kill off any gnats. Microbe Lift BMC also helps for gnats too. When you transplant those seedlings into bigger pots with coco, let the coco dry out a little (not too much) so that encourages root growth.
I water once a day or less if they don't need it. Dependant on root mass and size of the plant. If it's a large plant in a small container then they need multiple waterings.Be sure and keep your Cal/mag and Epsom higher.
Believe me in a short time you will want to upgrade to an auto irrigation. You cannot treat coco like soil, need multi watering during light cycles.
I use neem oil once a week as a foliar and drench, completely staves off any pest in my experience. And will kill any gnats if you already have them.
I water once a day or less if they don't need it. Dependant on root mass and size of the plant. If it's a large plant in a small container then they need multiple waterings.