I just looked at this website (Get to Know the Peaceful Pepper Cory) and it says PH for peppered corys should be 6-7! Is that true? My ph is 7.8-8!
Alright. They've only been in the tank for 3wks. They are always hiding it seems. That might just be because theres only 2 rn thoughThey probably are already used to it. I wouldn't try to change the pH, because if something goes wrong the change in pH is enough to kill your corydoras.