Stupid question about graduated cylinder

[Jake_the_reefer]

So I am trying to set a dosing pump to do exactly 1.7 ml dose daily. However when calibrating in my graduated cylindar there is the surface tension that throws me off from getting exactly 1.7ml do I read the volume at the bottom of this bubble or the top of the water line? If I read from the top its 2ml if I read from the bottom of the bubble its 1.8 I do have to be almost exact because this is for a 10g nano tank

 

[Samina]

I would read that at 1.8mL. Whenever reading off a graduated cylinder, you read the lowest point of the curvature or the meniscus.

 

[Be102]

Always read the lowest part of meniscus!

 

[Sisterlimonpot]

100% agree, lowest point of the meniscus.

 

[User]

Read from the bottom of the 'meniscus'.

1.8ml

 

[Redfoxtang]

This right here is awesome information!!

PART 2 -GETTING IT RIGHT--MAKE TESTING COUNT BY USING A QUALITY SYSTEM APPROACH---COLORIMETRIC...

PART 2-----COLORIMETRIC VISUAL TESTING METHODS (The Chemistry) As we covered in Part 1 in the “Understanding Errors” section, the visual testing method consists of essentially two steps, Evaluation and Assessment. Evaluation is the test procedure (The Chemistry) and Assessment is the...

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[Jake_the_reefer]

Appriciated guys!!!