I used to run a controller on my 125 (2 diffusers) but recently eliminated it to save $. My co2 comes on hour before lights and turns off hour before lights off. My question is, do our tanks need to be at 30 ppm upon lights on? Is it normal for my tank to slowly reach this level with lights on or should it already be AT the level upon lights on? My tank reaches my optimal co2 level towards the end of cycle. Hope this makes sense. Thanks.
Sent from my SM-T230NU using Aquarium Advice mobile app
Sent from my SM-T230NU using Aquarium Advice mobile app