You will not get a more easy to make sytem hydroponic wise than a auto pot system,All though if you have the money you can buy a good fish pump the ones that take air stones not the ones that pump water.If you are makeing 3 then make 3 holes on the top that will take net pots and run some tubeing of the pump into the water with nutes in and you have a bubble a ponics system for very little money.If you put into you tube how to make ahydroponic system then a guy pops up from canada he talks you trough each sytem with ease hope this helps tyke