i use airhogs the last forever u can buy them starting at 15 each for the small ones and there still bigger than the dollar ones at walmart or u could just buy a bunch of dollar ones
palerider7777 Reviewed by palerider7777 on . Quick Question on Airstones? Hey, I was wondering how important it is to have a good airstone with fine bubbles? Because I am modifying my system and I need to add 8 new airstones... and I would rather not spent $50 per airstone for the ones that produce fine micron bubbles. What is an acceptable micron level for growing plants hydroponically? If anyone has found good cheap ($20) airstones that work I would be forever grateful :stoned: Thank you all for your time. Rating: 5