Im not 100% sure but arent fox farms nutes organic,I have read a lot of posts from people useing organic nutes in dwc and it can be a pain in the ass,depending on how many plants you plan on growing 5 gal buckets work great as long as you can keep the nute solution temps in check,I have 4 buckets linked togeather with an 18 gal tote as my res,I have a pump in there the circulates the solution once every 2 hours.I insulated the buckets with some silver insulation stuff,and the res I also insulated my self with a box I built out of plywood and then I used that spray foam insulation in the can and it worked great(if you do the sprayfoam make sure to fill the tote with water)my first dwc was a learning experience and now I got myself an easy to maintain system that didnt cost hundreds and so far my second grow is doing just fine. good luck