How come I test calcium using API and get 390 and then when i tested calcium with Hanna Tester it says 550? I’ve read the manual a million times and watched videos on how to use the Hannah tester so I’m confident I’m using it correctly. Any help/ideas?
Testing help
PatW
2500 Club Member
I have used the API. OK for quick and dirty. Never used the Hanna but. I understand that the sample is diluted and that can magnify small errors. I use Red Sea Pro. And I understand that Salifert is good. If you have questions, Bulk Reef Supply has a video comparing popular calcium tests. Be warned, they do not deign to cover API.
Miller535
Valuable Member
I agree, Salifert is by far the easiest and most reliable. And you can buy it for like $18
brandon429
what, exactly, are you doing in your avatar
when this happens with nitrate: the bacteria have died. buy another round of bottle bac. first one was dead/nitrate was zero after my cycle (and then another tester reads 40 ppm)
:)
test kit drift nearly ruined microbiology in reefing, nearly.
:)
test kit drift nearly ruined microbiology in reefing, nearly.
Miller535
Valuable Member
I'm not following, the op's problem was testing Calcium
brandon429
what, exactly, are you doing in your avatar
it was a comparison how that variance affects reefing across params
most tests like this have such a spread
seneye vs api for ammonia for example, a big spread impacts how we see bac
nitrate etc
test drift is more than just annoying, it greatly affects how we approach cycling, I stated that in relation to how it affected his view on calcium levels. he might've started dosing based on the wrong one.
most tests like this have such a spread
seneye vs api for ammonia for example, a big spread impacts how we see bac
nitrate etc
test drift is more than just annoying, it greatly affects how we approach cycling, I stated that in relation to how it affected his view on calcium levels. he might've started dosing based on the wrong one.
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