C02 Indicator Dohicky

[Lotus]

I was looking through a fish catalog, and found this:

http://www.drsfostersmith.com/produ...pCatId=4608&prodId=8659&catId=993473&siteid=6

Does anyone have any idea how it works, or if it works? It's not that expensive, so I might just get one and find out if it's any good

 

[aquatic-store]

I think itworks kinda based on ph and kh i think I have the denerelle ones but have never used them. I think the denerelle ones show 5 stages.

 

[Somonas]

well the price is right. let us know how it goes lotus.

but honestly I dont check my co2 levels. when I put 2 fresh bottles on the ph is around 5.8 - 6. at the end of the month it's around 7. and goes back down to 6.5 gradually as I replace one bottle. meh..