ojustaboo
Member
- Joined
- 15 Mar 2011
- Messages
- 200
Hi, I have a API multi test kit that's 7 years old, I also have an additional PH test kit that's about 5 years old.
I have 4dkh solution.
I had my CO2 on from 1pm until 7pm.
I initially had my drop checker on the side of the tank, using 4dkh and a few drops from my 5 year old kit.
It stayed blue, the colour didn't change..
I then moved it after 3 hours right into the flow of CO2 bubbles coming out the spraybar. It still stayed exactly the same shade of blue.
I've just done test tube tests on the tank water using both kits, both give the same result, between 7.0 and 7.2. I also tried the high range PH test, that goes from 7.4 to 8.8. The result was lighter than than the 7.4, which points to what the other two tests say, between 7.0 and 7.2.
I understand that I should concentrate on what the plants are doing, but the drop checker isn't changing in the slightest. I have a 180lt tank (about 40 gallons) for the first 4 hrs I had 2 bubbles a second and for the last 2 hrs I had 6 bubbles a second going in and with 6 bubbles, I could clearly see the CO2 reaching the bottom of the tank.
But zero change in the dropchecker.
Part of me thinks maybe I should invest in a new PH kit, but part of me thinks the chances are the colour will more than likely be the same (do they actually go off?) , and if they do have a limited shelf life, how do I know they haven't been in my LFS or online store for a few years?
I have 4dkh solution.
I had my CO2 on from 1pm until 7pm.
I initially had my drop checker on the side of the tank, using 4dkh and a few drops from my 5 year old kit.
It stayed blue, the colour didn't change..
I then moved it after 3 hours right into the flow of CO2 bubbles coming out the spraybar. It still stayed exactly the same shade of blue.
I've just done test tube tests on the tank water using both kits, both give the same result, between 7.0 and 7.2. I also tried the high range PH test, that goes from 7.4 to 8.8. The result was lighter than than the 7.4, which points to what the other two tests say, between 7.0 and 7.2.
I understand that I should concentrate on what the plants are doing, but the drop checker isn't changing in the slightest. I have a 180lt tank (about 40 gallons) for the first 4 hrs I had 2 bubbles a second and for the last 2 hrs I had 6 bubbles a second going in and with 6 bubbles, I could clearly see the CO2 reaching the bottom of the tank.
But zero change in the dropchecker.
Part of me thinks maybe I should invest in a new PH kit, but part of me thinks the chances are the colour will more than likely be the same (do they actually go off?) , and if they do have a limited shelf life, how do I know they haven't been in my LFS or online store for a few years?