If you're in need of an airpump,air tubing and air stones... check out walmarts aquarium section.. I got 25 foot of air line a 20-60 gallon air pump and 2 airstones for 16 bucks out the door. I take some tubing from the air pump and run the airstone to the bottom of a watering can.. mix in my nutes to rainwater and turn on the pump 3 hours before watering.. it may not due a ton but! oxygenated water seems cool for roots.. anyone ever tried this and have any luck??? I mainly just wanted to buy the tubing to make a CO2 extractor.. I just did and sealed it up with silicone sealant and its working fantastic.