I didn't anticipate getting a pump and an airstone with my used 29g tank purchase, but I got one.
Should I stick it at the bottom to help aerate the tank (I have an AC70 filter) or should I bury it in the bottom of the media box to help aerate the bio media? The stone itself is approx 3-4 inches long, but I could get a different one. I'm not sure who makes the pump, but it looks old. 