At first, 18 pots, so going to need a shitload of rope.
I am probably going to give each plant a 1 gallon bucket, which the plant will be suspended over. Dont want to have 1 big reservoir, if something goes wrong, I rather not lose an entire crop.
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I dont see why you couldnt.
Basically get a ton of around 3/16" or 1/4" polyester rope (something synthetic that wont harm the plant, organic ropes will eventually decomposs or something lol). Hang about 2-3 foot of the rope through the bottom of the pot. Put around 2-3 inches of soil in pot, then coil the rope around the outer edge of pot towards the inner parts, leaving about a 1-2 inch circle. Place another 2-3 inches of soil over the rope, and repeat process till you get to top of pot (make sure its soil on the final layer), dont coil the rope too tightly, you want the roots to be able to weave themselves through it easily.
Have the rope hanging from bottom placed in a bucket of water, you can also mix nutrients in the water. Its best if you can keep light from getting in the reservoir so you dont have to worry about something contaminating it.
Wicking is nice because it keeps the soil moisture consistant, as the plant uses the water, the wick draws more from the reservoir. Good for vacations