Valleyglow
Member
I have a 240 litre 4ft tank. started co2 injection 24 hours ago. Didnt have drop checker until this morning so done 1 bubble per second to be on the safe side. Installed drop checker. Should it be green or lighter green than the image below. I feel the plants in the tank are reflecting off it as when I'm further away it still looks blue. Im confused as looks different colour depending what angel I'm looking at it