fishmanmike01 Posted March 15, 2017 Share Posted March 15, 2017 If so what value do you strive for? Quote Link to comment Share on other sites More sharing options...
fishmanmike01 Posted March 16, 2017 Author Share Posted March 16, 2017 Holy crap the crickets are loud in here. I am still confused by the ppb conversion which lead to the question. At ppb I'm not sure 0 is really what you'd want. Quote Link to comment Share on other sites More sharing options...
xmas_one Posted March 16, 2017 Share Posted March 16, 2017 I use that same meter. To convert from parts per billion to parts per million you multiply the reading on the meter by 0.003. I try to keep it under 0.10 and above 0.03. The instructions that come with this meter are actually pretty bad. The colorimeters I use at work have a much "tighter" procedure. You can increase the precision of your readings greatly by doing a few things. Make sure that you orient the glass tube in the same rotation for both the zeroing and the actual reading, make sure there are no fingerprints on the tube, and roll the tube to get rid of any bubbles or particles on the walls of the tube before inserting into the meter. 1 Quote Link to comment Share on other sites More sharing options...
Ramey Posted March 16, 2017 Share Posted March 16, 2017 I never get a consistent reading with mine but i strive for the same under ten but not zero. Quote Link to comment Share on other sites More sharing options...
fishmanmike01 Posted March 17, 2017 Author Share Posted March 17, 2017 Thanks guys, that's what I was looking for. A value on the checker. So it sounds like between 10 and 30 ish is a good place to be. My tank tested at 7 Quote Link to comment Share on other sites More sharing options...
shaywood Posted March 17, 2017 Share Posted March 17, 2017 I had to switch to this meter because my regular phosphate meter always showed zero. I have found the phosphorus meter to be highly accurate. Most of my readings range from .02 to .05 after conversation. Quote Link to comment Share on other sites More sharing options...
fishmanmike01 Posted March 17, 2017 Author Share Posted March 17, 2017 (edited) I know low phosphate might be a factor in the production of zooxantallae which can lead to fading colors of corals. I was just curious as to what my fellow reefers felt was too low based on a PPB perspective. Edited March 17, 2017 by fishmanmike01 Quote Link to comment Share on other sites More sharing options...
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