Rubbermaid instead of tank?

I use larger totes all the time,again use some 2x4s to brace the sides..I had one collapse..
 
Will the plants roots attatch to the container?
(java ferns, moss) Only a thin layer of gravel..


(Thank for all ya'll's help! :D )
 
They are also good later on for a quick QT tank or for transporting fish on a move.
 
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