Water planted aquarium

[prince]

Hi all,
i bought my new gadget, water planted aquarium. I put Co2 into the aquarium
everything seem working, but my detector still show i dun have sufficient Co2...

my bro setup exactly the same one..but no issue at all.

[felix_fx2]

Hi.
The indicator water needs to be d4kh to work properly, other levels will have intermittent results.

Note, kindly refrain from sms lingo usage. Thanks.