i want to know if i got this (finally)!!! my 80 gallons of water in the 90gallon tank has a Kh of 1. between 15 and 20 mg/L CaCo3 before lights on, with a new pair of calibrated pinpiont ph probes, one on each side of the tank ph reads 6.45 and 6.44 the tank also has a grounding probe in it. 1 hour and 15 min before lights on, co2 turns on. when lights come on ph is at 6.09 and 6.05. this tells me (if im right that i have close to 30ppm co2) as the photo period goes for its 9 hour cycle the ph drops to 5.95 and 5.89. this is OK, right? do i have this? or is co2 to high ? i remember reading something about the kh shifting slightly when lights and co2 start but i'm fuzzy on what that was.. can anybody clarify?
No announcement yet.
the right amount of co2