Do I need to on air pump for 24 hours a day for Kois?

Hi KOIs rearers?

do you on the air pump for 24 hours a day?
for me, i off it at night after 12 till the next morning.


if i off the air pump, i can't have plants in my container, is it?

at night, plants will take in O2 and release C02.

anybody can advise?


cheers,