Help! How much fluoride do I dose?

Jaybeastin

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Any math wizards out there ?


Please help ! I am terrible lol reefing is tough man lol

One is my solution concentration and the other photo is my ICP results

I have 340 liters tank
IMG_8254.jpeg IMG_8255.jpeg
 
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X-37B

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Any math wizards out there ?


Please help ! I am terrible lol reefing is tough man lol

One is my solution concentration and the other photo is my ICP results

IMG_8254.jpeg IMG_8255.jpeg
My floirine was around the same as yours per icp. I used ATI flourine and my next icp was 1.30.
Simple and easy to use.
20250802_191020.jpg
 

X-37B

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I’m not sure fluoride dosing is useful, but the math in your question is:

1 mL per 3.5 gallon will get you to 1.3 ppm.
When I brought flourine levels up I noticed my Oregon tort took on a much darker blue. Just sent out another around 2 months later and florine was still in range. Blues still look better but that's very a very subjective observation.
Next icp will be in 6 months so we will see what the levels are with the current level. I am interested to see if the levels fall and any color difference is observed.
I'm not sure it's needed either but I want to see if the system is using it over the next 6 months with no adds and just 5% WC monthly.

My rubidium was inline so I don't need to dose it, lol.
Screenshot_20250803_070222_Chrome.jpg
 

Randy Holmes-Farley

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When I brought flourine levels up I noticed my Oregon tort took on a much darker blue. Just sent out another around 2 months later and florine was still in range. Blues still look better but that's very a very subjective observation.
Next icp will be in 6 months so we will see what the levels are with the current level. I am interested to see if the levels fall and any color difference is observed.
I'm not sure it's needed either but I want to see if the system is using it over the next 6 months with no adds and just 5% WC monthly.

My rubidium was inline so I don't need to dose it, lol.
Screenshot_20250803_070222_Chrome.jpg
I ran a thread asking folks who believed that fluoride dosing was useful in their rank, what exactly did they think it was useful for. There was little agreement, along with folks noting no change. That, and the fact that the consumption is incorporation into depositing calcium carbonate, in place of carbonate, leads me to be skeptical of a benefit.

But there’s also no harm, aside from cost and effort, to maintain natural levels and I’m not saying you should stop.
 

X-37B

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I ran a thread asking folks who believed that fluoride dosing was useful in their rank, what exactly did they think it was useful for. There was little agreement, along with folks noting no change. That, and the fact that the consumption is incorporation into depositing calcium carbonate, in place of carbonate, leads me to be skeptical of a benefit.

But there’s also no harm, aside from cost and effort, to maintain natural levels and I’m not saying you should stop.
I stopped because I want to see how much it is depleted from current levels until the next icp.
 

Randy Holmes-Farley

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I stopped because I want to see how much it is depleted from current levels until the next icp.

It will deplete in proportion to calcium and alk added and consumed in the time.
 

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It will deplete in proportion to calcium and alk added and consumed in the time.
Thanks. I don't want to blindly dose it like I did with strontium from past results.
Strontium came down from 25 to 16 in 2 months per icp
I am going to just observe the color and see where it falls next icp in 2 months.
 

Randy Holmes-Farley

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Thanks. I don't want to blindly dose it like I did with strontium from past results.
Strontium came down from 25 to 16 in 2 months per icp
I am going to just observe the color and see where it falls next icp in 2 months.

Sounds good. :)
 
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Jaybeastin

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When I brought flourine levels up I noticed my Oregon tort took on a much darker blue. Just sent out another around 2 months later and florine was still in range. Blues still look better but that's very a very subjective observation.
Next icp will be in 6 months so we will see what the levels are with the current level. I am interested to see if the levels fall and any color difference is observed.
I'm not sure it's needed either but I want to see if the system is using it over the next 6 months with no adds and just 5% WC monthly.

My rubidium was inline so I don't need to dose it, lol.
Screenshot_20250803_070222_Chrome.jpg
Damm what are You dosing? Looks great
 
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Jaybeastin

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I only dose DSR ez-trace. It goes into my ato reservoir. Carx for ca and alk.
I do not feed the corals but I feed my fish heavy
We don’t have that in the states but I ordered KZ’s Trace Element Complex. Hopefully I can achieve the same results!
 
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Jaybeastin

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I only dose DSR ez-trace. It goes into my ato reservoir. Carx for ca and alk.
I do not feed the corals but I feed my fish heavy
We don’t have that in the states but I orderedKZ’s Trace Element Complex hopefully I have the same results
 

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We don’t have that in the states but I ordered KZ’s Trace Element Complex. Hopefully I can achieve the same results!
You can order it from Deltec USA. If they are out I order from Europe. Got my last 5000l from overseas.
 

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It will deplete in proportion to calcium and alk added and consumed in the time.
Randy. The flouride contaminant in calcium carbonate appears to be (would need checking) anywhere between 2 and 4 ppm. Therefore, should it not be possible to calculate a conservative dose (2ppm), per DKH consumed by calcification or precipitation? Perhaps adding it to your 2 part Alk recipes. Dong Zou has been commenting on flouride for a while now (Dosing flouride upto 1ppm, every 2 or 3 days). I'm a tad concerned this may be over the top, tbh. Thanks as always.

Correction Edit - appears the amount of flouride incorporated into calcium carbonate is 1000ppm +- 500ppm.
 
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Randy Holmes-Farley

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Randy. The flouride contaminant in calcium carbonate appears to be (would need checking) anywhere between 2 and 4 ppm. Therefore, should it not be possible to calculate a conservative dose (2ppm), per DKH consumed by calcification or precipitation? Perhaps adding it to your 2 part Alk recipes. Dong Zou has been commenting on flouride for a while now (Dosing flouride upto 1ppm, every 2 or 3 days). I'm a tad concerned this may be over the top, tbh. Thanks as always.

I expect the amount incorporated is a string function if the amount in the water, with more tending to drive it in. Whether being there is good or bad, that will act as a control help in over or under dosing.

One certainly can do what you suggest, and I expect that is how products such as AFR determine how much fluoride to put in.
 

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