I have created a new +- 100 000 liter pond (15 x 7) (in progress), to accommodate newly hatched fry.
I need to make an urgent decision.
Only an air compressor with various air stones like most people do it.
Two submersible pumps, each pulling from 15 meter x 40 mm irrigation pipes lying on the bottom, full of holes, covered with stockings to prevent the fry from being sucked in, and returning via bakki showers.
I will appreciate your inputs on the pro's and con's / viability of the two systems.