How often do you calibrate your refractormeter??

[Aquattro]

People calibrate these things?? oh....lol

[jhj0112]

Originally Posted by Aquattro

People calibrate these things?? oh....lol

haha that's what I thought at first.. lol

[Flash]

I don't do many water changes.... But once ever few months! Lol it only takes a second!

[Aquattro]

Originally Posted by Flash

But once ever few months! Lol it only takes a second!

Ya, but that little bottle of calibration fluid dries up the first week

[Flash]

Lol oh it's been a long time! I forgot how much fun this site was!

[lastlight]

Never have maybe I should check it lol.

[Myka]

I check mine about once a month. I check my clients' refractometers about once a month too. I find they all can use an adjustment by that time.

[kamloops_reefer]

everytime - I have a vertex one and find that its a pretty touchy instrument. and can fluctuate +/- 0.03

[SteveCGY]

Once every two years considering I use it once a month. And always leave it a point high so it compensates for evaporation and never let more than 4l absolute max evaporation. As soon as I can see water under my trim I add and add calcium to rodi water I ad