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Drop checker still lime green in the morning

creg

Member
Joined
21 May 2011
Messages
219
Is this normal? The co2 has been off since 6pm yesterday but my drop checker is still lime green.
 
Hi,
There's not very much information there for anyone to make a proper diagnosis.
Does your tank have a lid which will help retain CO2, do you have any form of surface skimmer which will aid in off-gassing, do you run an airstone overnight which will also aid in off-gassing, have you checked that your drop checker fluid is behaving correctly, there could be a lot of reasons?
Have you tried doing a PH profile, using as a baseline, water from your tank that has off-gassed for 24 hours and is the same temperature, this PH value is your starting point for a 1 PH drop?
I believe there are quite a few on here who experience residual CO2 but a lime green drop checker the following day appears to be a bit extreme to me.
Cheers!
 
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