DWC Question

I currently have 6 rooted plants between 4-6 inches in a 18gal Rubbermaid. How big can i veg(root mass size) before I should flower. I'm afraid that the root mass will get to big and not fit in the tub anymore if i veg them to big. Is this a legit fear.

its best 2 let plants get 20 inches u want stems 2 b strong by that size roots handle anything

Hey bro ur perfectly fine! Good question! U are going to want to try to veg at a foot tops. Keep in mind u can top ur plants soon as they get there sixth true set of leaves and keep growing them out ill u hit that foot! Thereby allowing ur plants to grow more stems and colas for more buds!
I can tell u that in experience, u can easily grow 6 plants in ur 18 gallon tub vegged at 1 foot tall. Yes u will end up at the time of harvest with almost a completely full tub of roots, completely entangled mess, but As long as u change ur water as suggested ( every 10 days- 2 weeks ) and feed as directed on ur nut bottles u will be fine!

K, well this is the 2nd time growing this strain. I cloned the best plant and they are looking good now. A little nute burn but happens i guess. I topped yesterday using the FIM method. They were getting to tall and lanky so i am trying to keep em bushy. They are sativa dominate if not 100% sativa. They grow extremely tall so i want to LST them. Whats the best teqnique for LST with DWC in a rubbermaid tub? Thanks for gettig back to me also.