i was wondering if something was wrong. i have a pressurized co2 system and i keep the ph at 7. if you let my tap sit for 24hr the ph is 8. the tank is on a timer. goes off 1hr before the lights go off and comes on 1hr before the lights come on. but at night or morning the ph is the same never moves. i'm using a red sea co2 indicator and it stays green 24hrs a day. saying i always have the same amount of co2 in my tank at all times. how can i have the same amount of co2 all day and night if the co2 not running. and the fish are fine no gasping and i theres really no top water movement or air stones