Backyard Aquaponics
A place to discuss aquaponics

The rule of thumb is an air stone every 1.2 meters with 9 lpm through each stone,as an example my troughs are 9 metres in length and I have 7 air stones with a 60 lpm air pump for each,no regulators just connected direct to a manifold running the length of the trough,there is a slight discrepancy in the bubble boil but iam sure it doesn't matter.

And the only plant I have no success with in DWC is Corriander.

Great!
thanks dasboot!

so 7 stones multiplied by 9lpm = 63 (or 60)lpm pump?

Yes that's it,I could have got away with 6 stones but I decided on the extra one so the 60 lpm filled the bill perfectly.

thanks again.
What size (cfm rating) are the stones you are using?

No ideal on the cfm for the stones,just the physical size which is 50mm Dia X 75mm length.

any idea what pressure (psi, mPa) your pump is?

Sure the label tells me they are 0.035mpa.

Thanks.
Same as the one I'm looking at.