First Timer Indoor Auto Grow

Hey guys! It's now week three for all of my autos, and I feel they're not growing as fast as they should. One of the Tyrones is almost ready to start LSTing, and is MUCH bigger than the rest by a landslide. He looks like a normal size for his age, but the others look way told small. The other Tyrone still looks like a seedling 🌱 and has had very minimal growth since last week. The Chemdogging is developing very slowly as well, faster then my second Tyrone. The auto blueberry seems to have stopped growing altogether since the overwatering problem became evident, but even after adding more circulation, holes in the bucket, and avoiding more watering, it has yet to pick itself up again. I'm a little worried about how small and undeveloped all of my plants look except for a Tyrone Special. Last watering I added a very small amount of nutes (about 1/6 recommended floragro trio), and I watered the bigger Tyrone Special again today as it's growing fast, slightly increasing nutes. So ya, does anybody have an idea why 3/4 of my plants aren't as developed as they should be? They've received basically the same treatment as my biggest plant, only ever watered with 6.5ph (it won't let me change the info section from a ph of 7 to 6.5 for some reason). Hoping to find some advice! Thanks for reading! Update 4/15 - I've come to the conclusion that overwatering is the reason for my plants being so small. Although only one of the plants leaves are drooping, I believe overwatering has stunted their growth. I've since added MANY drainage/airholes and have better angled my fan to aim at the holes in hopes to dry it out a little faster than before. I think this will fix it!