The VersaGrow 10 pot hydroponic system uses a top feed drip. The unit is easy to set up, takes little space and is very high yielding. I have used it myself with great results. I recommend using hydroton or perlite for media. You can also use coco with great results but will probably want to use a timer with it in that case. Otherwise just plug it in and run it 24/7.
VersaGrow 10 Pot Hydroponic System Redesigned And Even Better
One big change is the addition of a tube on the side to monitor nutrient levels. My unit is the older style and required opening the lid just to check this. It also has a redesigned top which sits higher than the original which was recessed. This will give roots more room to grow downward into the reservoir.
This is a great unit for a stealth grow because it is silent. You don’t need to run an air pump because the continuous drip system keeps everything aerated. You can add an air pump if you wish but not necessary and you can carefully drill some extra holes in the lid underneath the pots to let the roots get into the reservoir more easily.
The Versagrow is a great, high yielding and inexpensive hydro system that I would really recommend.