This thread is a home away from home. We are on the other side wishing and hoping, trying to put our hands through the laptop screens to help you but all we hit is glass and not your grow. I take just as much ownership, but we are so much closer to assessing your grow needs than we have ever been before.
Maybe someone can gather text for Grandpa on growing coco, so he can read what is expected of him in advance of buying his materials.
Not everyone finds their growing medium right off the cuff. I went through 2 different growing blunders and now I have a growing medium that is working for me, instead of me working for it.
Another thing about MC is that you can REUSE it providing you get through the harvest without bugs and huge errors. Yes you can. I only reuse it once when I've had a successful grow and add some new MC to the top. Now you can only do this when your grow was successful, but what a savings too. My seedlings are only in MC now and have been since they sprouted. I have not added any nutes or soil to the cups where they sprouted. So when they leave the cup they will go into the 1 gallon layered nutrient soil and mc mix, then I add additional organic nutes as they get older.
When I'm sick and can't water my plants, I can leave them for up to 3 days and you can feel this by the way it pulls away from the pot wall leaving about half an inch of space like I already taught you. Now when she's in flower you will increase watering times, but we can cross that bridge when we get there.
Coco actually soaks up waaaay more water than just soil and will grow better yields for you Grandpa. Because it soaks up more water and better yields it requires daily watering. Please correct me if I'm wrong anyone, I'm learning too. Can coco go without water for more than a day, I really don't know, but I have often toyed with the idea of going coco. I just can't take on that amount of precision that coco takes in order to use it properly. It could be your thang so research is required. Maybe someone could help you?
Does anyone have feedback?
EDIT: Grandpa you made me laugh...lol. HIGHlarious.