I've never heard of them or any shrimp needing an airstone, more often they prefer a calmer setting anyway so they can sit and graze all day long ^_^ as far as I can tell, people are saying that they need the oxygen in the tank but the filter will do that well enough! Even if it is baffled, it still brings oxygen back into the water so you really shouldn't have issues with that.
RJ (H. Lifalili), Acara (EB)
Ghost, Trip (Angels)
Leopards: 2:3 Hawkeye, Cullen, Luna, Astrael, Dorian