Hi
I always switch off my Co2 the night before if I'm going to purchase new fish!
The reason for this is LFS fish are in well-aerated tanks....so its best practice to have similar well-oxygenated aquarium water when acclimatizing them.
Co2 can be restarted slowly when the fish have settled into their new environment
hoggie
Nice tip. Haven’t heard of this before but makes perfect sense. Thank you
Sent from my iPhone using Tapatalk