For very little you could do bubblers. My bro only needs a small air pump. He will make a bubbler out of anything. He is so cheap he uses a paper hole punch and plastic cups to make netpots. He finds a bucket or 2 of lava rock now and again, just beat them up and wash good. Then he bums some GH nutes and a meter off me and he's set. He needed some PH down whitch last him forever and I had to go in on a quart before he would go get it.

Come over to the full hydro side and forever will it rule your destiny. lol