I thought I'd share this as a comparison on what is being used in at least one commercial system to rear fish employing airlifts. Yes airlifts are being used in intensive aquaculture systems, not just koi ponds.

https://www.youtube.com/watch?v=fi5Td4aOsls

Below are some specs regarding fish loads, species, carrying capacity etc.

https://astfilters.com/aquatic-syste...and-brochures/

Was hoping some of you would find it of interest.