I'm new to growing, 2 soil grows,1 coco and now 1/2 way through flowering 1st time autos in 1st time rdwc... question is...WTF is going on with my air stones... I think I'm pretty intelligent but it pisses me off that when I see this...why is my airstones furthest away from the pump producing the most air????.... normally the closer the more pressure/volume something will have...but with my 6 air stones the furthest ones have the most air and growth to show for it(1 foot taller), then less in the next 2 buckets that are closer with shorter plants then the closest are again smaller and the stones produce even less air. I'm baffled and waited for an explanation that will make me feel stupid.... 1-1/2" return piping starting at 1 bucket through the remaining 5 then to a res. Res pumps 400gph to 1st bucket then gravity through return piping. 13,500LPH air pump to 1 stone in each of the 6 buckets then 2 stones in the res. Enlighten me please.