1 year ICP results ALL FOR REEF

[rishma]

So I just realized that my Zn result is only a little lower than yours. My ICP test was from Fauna Marin, which was recommended by my LFS. It looks like based on their chart that your Zn result would actually be considered at the “ideal” value.

perfect example, I don’t know if there is a scientific basis for the ranges from the ICP companies. I’m personally not worried about the Zn level in my tank but being in my RODI bothers me a little.

 

[eggie]

I do ICP almost monthly in December I had zinc 5 ug/l in my RO water even my TDS showing 0 so I order new RODI filters I always use Spectrapure Silica Buster and Max Cap for my DI. Change as well my sediment and carbon.
Sent a new ICP on January and Zinc was not detected on my RO and my tank levels of Zinc drop 40 to 15 ug/l
I use Oceamo MS test always
My income water comes to cooper tubing from the street to my home
My RO system connects thru standard tubing and water lands in a 15 gallon container that I use for water changes and refill my Top off and Kalk
Hope this info help others

 

[Randy Holmes-Farley]

perfect example, I don’t know if there is a scientific basis for the ranges from the ICP companies. I’m personally not worried about the Zn level in my tank but being in my RODI bothers me a little.

I’m not aware of data that supports the ranges used in most cases, and I’d personally not have too much confidence in them.

Even ignoring the issue of different chemical forms being treated as if they were the same, every organism in the tank may have a different acceptable range.

Sometimes the ranges are ridiculously narrow, and many folks get warnings about things being “critically high” or low or some such wording when there’s no apparent problem in the aquarists assessment.

I’d suggest folks use icp as a guide of what might be useful to do, not necessarily what must be done.