Phosphate Testing

craigwmiller · #1 12-21-2013, 04:52 PM

Well after much more prep and vial cleaning and careful testing, I think I have 0.00 phosphate, which is good I suppose.

I mainly got all in a panic since I added some base rock (15 lbs) about 6 weeks ago and some large dry rock (20 lbs) shelves about 2 months ago (the shelves at least cycled in a rubbermaid for a while) -- but on last test ~ 3 weeks ago it was around 0.08-ish, so dropping to 0 is odd, but 2 hanna tests, and 2 elos tests show nadda

...so I suppose I can trust the SPS:

Cal_stir · #2 12-21-2013, 06:33 PM

I have elos po4, it always reads 0, i have a hanna phosphorous ulr also and it read 32ppb = 0.098 ppm, I know for a fact that I don't have 0 po4 so I go by the hanna, I increased my gfo and my po4 has dropped to 11 ppb = 0.034ppm so I am inclined to believe the hanna.

Craigdillman · #3 12-21-2013, 06:33 PM

I think general consensus is you want to keep it below 0.04ppm.Ive read some threads on RC showing making it absolute zero for too long had some decreased growth effects on certain Acro's after a few months. Ill look for the link

Edit found the link
http://www.reefcentral.com/forums/sh....php?t=1168053

Craigdillman · #4 12-21-2013, 06:37 PM

Hope I get a hanna checker for x-mas lol come on santa

Cal_stir · #5 12-21-2013, 06:47 PM

Quote:

Originally Posted by Craigdillman

Hope I get a hanna checker for x-mas lol come on santa

make sure santa gets you the phosphorous ulr with extra reagents.

iceman86 · #6 12-30-2013, 06:31 PM

I also just got the same elos kit and the color is clear too. Not sure if its a bad kit or what. I only have an api to compare it to and that reads zero but we know that kit sucks.

craigwmiller · #7 12-30-2013, 06:56 PM

Quote:

Originally Posted by iceman86

I also just got the same elos kit and the color is clear too. Not sure if its a bad kit or what. I only have an api to compare it to and that reads zero but we know that kit sucks.

Where did you buy your kit?

iceman86 · #8 12-30-2013, 06:58 PM

Quote:

Originally Posted by craigwmiller

Where did you buy your kit?

J&l I wonder if its a bad batch

Cal_stir · #9 12-21-2013, 06:45 PM

Quote:

Originally Posted by Craigdillman

I think general consensus is you want to keep it below 0.04ppm.Ive read some threads on RC showing making it absolute zero for too long had some decreased growth effects on certain Acro's after a few months. Ill look for the link

Edit found the link
http://www.reefcentral.com/forums/sh....php?t=1168053

0.03 seems to be ideal as po4 is essential for life in plants, animals and bacteria.