How to manage oxygen depletion in catfish hatchery

[@NofiuMorenikeji-l2f]

Thank you sir

[@youngboss932]

Where r you( ur farm😊

[@user-ju6xh5qy6x]

Good morning bro, please I'm having some problems, after my fish hashing, three days for them to start eating, they start dieing .please what is the problem and the solution to it
Thanks

[@aquatechtv]

what type of hatchery system do you run?

[@RayLynLabrador]

No.. not oxygen depletion.. the water is toxic brother.. accumulation of ammonia etc.