Hydroponics

First get a dutch leach tray (online for ten bucks), then get two, three foot flexible airstones, (5 bucks a piece) for each tray you add. I run four trays with six plants in each tray. Next get a large container for your res. 5 gal for one tray and equall for each tray you add. You will need to outfit the container with a small pump that will fill your trays from the res.
Put your water pump and your air pump for the airstones on the same timer.
On one side of the dutch tray the water comes in from a 90* angled coupler provided with the tray and then drains out on that same side, through a different hole with the same coupler. This is how you can dial in your water level, by twisting the drain spout vertically to the level you want the water to be in the tray.
The water level is arguable. I keep mine right at the bottom of the roots to get the most out of the nutrients that usually float nearer to the surface, but your bubbling so dont worry, its fool proof! . Then fashion a cover for the tray with holes where ever you wish and at the appropriate size for mesh pots that you will place your plants into. . I cut a six inch wide strip of 1/8 inch thick aluminum for my top ;-) Put your mesh potted plants in, and thats it.... set your timer however you want as long as your cover is light tight. I would recomend running it at least 50% of the time, but that is up to you and your medium.

This is an expandable system also! If your grow, grows, the system can grow with you.
This is also the best of the best. Only misters of foggers may produce better results but I doubt it.
And its super cheap! The system I just explained will cost you 50 dollars. Ten for the tray, ten for the stones, five for the containers and about 25 for the two pumps and hoses from a pet store. Depending on what your growing, you could have up to nine sites per tray!
I havent seen any thing like this online but a similar system that is NOT expandable is around $300-$400 online.
This is a very good system. Its flawless and fast.
Happy to share the info, and dont let anyone tell you, You can't do something!
Best of luck!