First grow, Growing in 50/50 coco coir and organic soil. This seedling is starting to put on more leaves, and the newest ones are yellowish (at the bottom), and this would be the time to dose with nutrients, yes? I have some Advanced Nutrients A&B Sensi Coco Grow. Just 4 ml per liter of water? And what would be a good amount of water to give it? I'm always confused about that. I've been basically taking a straw and filling it up with water and applying in a small circle around the seedling every 2nd or 3rd day. Can I water more?