You have the air pump. You need a 5 gallon bucket. you need to buy or make a basket top or netpot bucket top. A bucket and netpot lid are only 10 dollars. I have seen almost anything used for these. some hydroton or some lava rocks for a gass grill.

There you go. Fill the bucket to just under the netpot. Put you plant in the netpot and fill with rocks. Put your air stone in the water and make sure the bubbles are close enough under the netpot to splash the rocks. Some nutrient would help.

Add some light and BAM.