Comment by Ruben Odom on February 18, 2012 at 9:51pm

can you teach me about this I like to have one 

Comment by josue_BoltBLast_ on February 18, 2012 at 10:52pm

sure, but this was the last in stock i got the last one and it comes all the way from japan, :(  anyway here are the instructions... An all glass CO2 monitoring tester whch provides continuously CO2 level for a long period of time. instructions, 1) fixed ssuction cup into its holder  2) invert the tester and put 3-4 drops of reagent into the ball side of the tester. 3) in the same invert position, place some of the aquarium water into the tester, just enough water to fill the half of the ball  4) tap on the tester just to make sure that all of the liquid has gone into the ball, do this in the same invert position.  5)slowly turn the tester into an upright position.  6) place the tester with the suction cup into the aquarium and make sure there is an air colum in the tester's tube, just like presented above.  7) do not place the tester beside the CO2 diffuser and the outlet of the filter. and thats all to it, and it is pretty eficient and acurete i simply love it and it looks gorgous and it mesures both the ph in the water and the co2 level. i recomend it.

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