My nitrites are finally showing up. They are at a level of 300ppm. My tetra strip app recommends a pwc...oh course. I have a 20 gallon. Do I need to do a 50? I am not sure how pwc affects nitrites as far as level.
Sent from my XT1585 using Aquarium Advice mobile app
Sent from my XT1585 using Aquarium Advice mobile app