I found a cheap local place and website for Pumps and bags.

I don't want to be breaking rules and am not affiliated, but they are cheaper than Ebay and amazon.

alliedaqua.com

[h=2]Elemental O2 Commercial Air Pump, 951 gph for 25.99[/h]


Sunleaves grow bags 7 gal size 72 cents a bag. Cheaper each size down. 5 gal .56. 3 gal .29