3 gallon vs 5 gallon

So i'm using Canna Coco for my medium and my 3 plants just sprouted, Super Lemon Haze, Lemon Skunk and Rocklock. I've only grown once before (currently week 7 of flowering) and they are in 5 gallon pots. I wanted to ask about the switch because of the amount of soil/coco and water for feeding and especially flushing is getting a bit much. Also my Blueberry only grew about 2 feet and my other two plants came in just under and just over 3 feet. I was told its usually a gallon per foot of plant. So would 3 gallon still give them plenty to work with and produce the same kind of yield?

Sure! If it worked before it should work again.

I'd aim for 3.5 gallon buckets

LiveHigh said:

I'd aim for 3.5 gallon buckets

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lol do they have those?

Yep. I got two of them at Lowes.

thats a rule of thumb for every verticle foot you want atleast 1 gallon of medium. so if you expect your plants to get to 5 feet you want atleast a 5 gallon pot. its not i have a five gallon pot so my plants will peak out at 5 feet. a 3 foot plant needs 3-5 gallons of medium in a soil/soiless grow, if you follow that rule. i have two indicas that are in 5 gallon pots but they will peak out at 2.5 to 3 feet tall.

root system should do fine in a 3 gal but 5 gal wont hurt, yes your plants are using more water but that just adds for a more stable plant