Holy smokes,for the size of the those pots/cups those gals look lovely.Just think how great they would have turned out if you had decent sized pots.Spring for some three gallon pots (maybe 1.90$ each or so).If you are thinking about DWC and concerned about money,it might be best for you to stay with soil for right now.Not that DWC is terribly expensive but the start up costs might be a bit more than what you want to spend right now.Ill be setting up my DIY DWC in a few weeks and Im planning on spending between 400-600$ for 4 tubs.There are some things you can skimp on and some you just cant (like air pumps,etc.).

I would say all in all with the results you had from those plants in those tiny containers you should do well with a setup that allows for more room for your roots.Good luck.Take care,be well,and most of all be safe.