Correct. You can definitely have a ton of problems in coco, but overwatering not generally one of them. you can overwater a small plant in a really big pot. Even that is pretty tricky though. Once my veggers get some size on them, they get fed at at least twice a day and I will give them a third if it is hungry strain.
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This gal is in veg and just got fed. She will get fed again around noon and then again at about six. I think of coco like a store shelf. My job is to keep it stocked with fresh full-strength nutrients at the correct ph. The coco literally just holds her up and holds liquid nutes. If you have your nutrients perfectly dialed to what she is eating, you can basically feed her as many times as you want. Your biggest risk will be throwing away a bunch of nutrients you didn’t have to. You won’t hurt her though.
What size is the pot you have her in currently? If the pot is a little oversized, I’ll show you a quick trick that will help you get your feeding dialed in until she gets big enough.