Quote:
Originally Posted by lastlight
Biggest waste of money ever: Hanna Phosphate Checker.
This putrid looking brown hair algae is having an absolute heyday on all the rock that was added to my stuff from the previous tank. So I do two tests tonight to determine whether my gfo needs replacing after only 2 weeks in operation.
Both tests: 0.00
When you're already ****ed because it's damn near impossible to get all the damn reagent out of those little packets let alone into the vial... and it slaps you with a zero reading twice... I damn near threw the thing out! 
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I've heard they are very particular, you have to measure exactly right and follow the instructions perfectly or they wont work. Going to try one out later on my tank, I'll let you know how it goes.