root bound ?

Have a few different sizes and ages of plants going. all doing fine but one batch all in 12 12one batch put on 12 hour a week or so after rooting in 2 gal bags doing good the other set been veging lot longer toped twice in 3 gal bags and the rest of the older ones got put in 2 gallon bags are soakin up water alote quicker and are lookin dry not fillin up mutch any more leaves dryed up bud not lookin to fresh niether could they be root bound

I'm using my smart phone don't know how to post pics can I do it on my phone