sera permanent Co2 test?

["Bev" <bevgreen at cygnus_uwa.edu.au>]

For all people out there using uncontrolled yeast co2 there seems to be an
amazing option.
For AUS $25 I can mail order a sera permanent co2 test it is some kind of
colour changing meter that shows if one needs to add/decrease co2
injection.

Any comments on this would be greatly appreciated.

and thanks for all the advice I didnt recieve about my plant tank thats
full of thread algae I am now just removing some of it daily and hoping the
plants will use up whatever is causing it.

Regards all.
Daniel Green
bevgreen at cygus_uwa.edu.au

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