Hello one and all. First time posting in this forum. Didn't even know I could until recently as I have remained on the Betta site. I have a couple of questions. How do you maintain a stable PH in a black water environment? How do you prep replacement water for this environment so as not to disturb the conditions in the tank? Planning to keep several black water tanks, so I'd like to learn as much as I can about this area of the aquarium hobby.