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andrew dodds
New Member
Username: kingchopper

Post Number: 1
Registered: 01-2006
Posted on Thursday, January 12, 2006 - 07:15 am:       

how accurate are test kits.
i have a ph probe as part of my co2 system and it reads a ph of 7.6 but when i use my test kit i get a reading of 6.5
kh = 80 ppm
gh = 180 ppm
ammonia = zero
Nitrite = zero
nitrate = zero
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Brad
Advanced Member
Username: brad

Post Number: 1516
Registered: 03-2005
Posted on Thursday, January 12, 2006 - 11:01 am:       

Cheap test kits are cheap for a reason. I used to work in a lab and trust me, there`s a reason they spend so much more on test kits. Calibrate your probe with a known standard often and keep an eye on your kh. IMO, they`re good enough for kh as a little inaccuracy won`t make a big deal.

Lamotte apparently makes good kits but they`re pricey.

Check out Sully`s poste titled something like 'calibration fluids' in the general section too.

BTW your nitrates should not be at zero in a planted tank.
Ever feel like you`re flying and drowning at the same time?
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