phin
Aquarium Advice FINatic
So I've got DIY CO2 set up on my tank. 2 x 124oz gatorade jugs. I get between 2-3 bps. one mix is 16 days old, the other mix is 9 days old. As of last night I was still getting 2+ bps.
My drop checker has been showing a ph of 6.5 for the past week ~38ppm CO2.
Last night, when I got home, I noticed my drop checker was yellow. The lights had been on for about 4 hours, so the plants were photosynthesizing. The 4dkh solution in the drop checker is only a week old. I took the drop checker out of the tank and added a couple drops of my tap water to it. The color instantly turned blue-green, so the pH indicator solution in the drop checker was still good.
I tested the tank water. pH was 6.5, dKH was 4, dGH was 7. All the fish were acting normal, didn't appear stressed or starved for O2.
I refilled the drop checker, put it back in my tank and haven't looked at it since. I forgot to take a look this morning.
Any idea why my CO2 concentration keeps increasing while my DIY CO2 mixes get older?
My drop checker has been showing a ph of 6.5 for the past week ~38ppm CO2.
Last night, when I got home, I noticed my drop checker was yellow. The lights had been on for about 4 hours, so the plants were photosynthesizing. The 4dkh solution in the drop checker is only a week old. I took the drop checker out of the tank and added a couple drops of my tap water to it. The color instantly turned blue-green, so the pH indicator solution in the drop checker was still good.
I tested the tank water. pH was 6.5, dKH was 4, dGH was 7. All the fish were acting normal, didn't appear stressed or starved for O2.
I refilled the drop checker, put it back in my tank and haven't looked at it since. I forgot to take a look this morning.
Any idea why my CO2 concentration keeps increasing while my DIY CO2 mixes get older?