JeepinReefer
Active Member
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- Dec 26, 2017
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- What state or country do you live in
- Texas
https://lab.atiaquaristik.com/share/05af3c138f2c84fded81
I set up a brand new aquarium system, filled it with RODI, mixed the salt (Fritz RPM Blue) in the aquarium, and then took samples for my first ever ICP analysis after it had mixed for a day. Everything looks pretty good, but manganese is very high at 0.138 ppm (ATI's reference value is 0.00095 ppm). Manganese was undetectable in my RODI sample that went along with it.
I have two theories I'd like your input on:
I drilled 4 holes in the glass and there was definitely some lingering dust from the drilling still present when I filled it up. It didn't cloud the water or anything crazy like that, but there was some dust still present before I filled it. I see that manganese can be used when making glass, so maybe that is the source. It is standard aquarium glass, not low iron/starfire glass, and iron was undetectable in my water samples.
My second guess is a metal spring clip I use to hold my RODI line in my water jugs. Occasionally when the jugs fill all the way to the top, the bottom of the spring clip touches the water before I catch it. I took my ICP RODI samples straight from the RODI line, not the jug, so this potential source wouldn't have impacted the RODI sample.
What do you think? Also, would you worry about manganese this high?
I set up a brand new aquarium system, filled it with RODI, mixed the salt (Fritz RPM Blue) in the aquarium, and then took samples for my first ever ICP analysis after it had mixed for a day. Everything looks pretty good, but manganese is very high at 0.138 ppm (ATI's reference value is 0.00095 ppm). Manganese was undetectable in my RODI sample that went along with it.
I have two theories I'd like your input on:
I drilled 4 holes in the glass and there was definitely some lingering dust from the drilling still present when I filled it up. It didn't cloud the water or anything crazy like that, but there was some dust still present before I filled it. I see that manganese can be used when making glass, so maybe that is the source. It is standard aquarium glass, not low iron/starfire glass, and iron was undetectable in my water samples.
My second guess is a metal spring clip I use to hold my RODI line in my water jugs. Occasionally when the jugs fill all the way to the top, the bottom of the spring clip touches the water before I catch it. I took my ICP RODI samples straight from the RODI line, not the jug, so this potential source wouldn't have impacted the RODI sample.
What do you think? Also, would you worry about manganese this high?
