Randy's Elements to Dose

[acro_lover]

@Randy Holmes-Farley. Thank you so much for your reply. So basically I am wasting the sodium Fluoride as some of it precipitate and its better not to mix them. Did i understand correctly?

 

[Randy Holmes-Farley Verified Community Expert]

@Randy Holmes-Farley. Thank you so much for your reply. So basically I am wasting the sodium Fluoride as some of it precipitate and its better not to mix them. Did i understand correctly?

If you started with two clear liquids and saw a solid precipitate, yes. If you want to try to salvage it, adding more water will do it, but I’m not sure how much is needed. It might be a lot.

 

[acro_lover]

If you started with two clear liquids and saw a solid precipitate, yes. If you want to try to salvage it, adding more water will do it, but I’m not sure how much is needed. It might be a lot.

Thanks for all your advices. Last question, is it ok to add the Fluor to the top up RO water and carefully do the math according to the evaporation. I can also add it to my trace elements (Salifert Trace Hard). Those trace elements already contain Fluoride but i don't know if that's the same as Fluorine. Would it be Sodium Fluorine you think? I can slowly and carefully add Sodium Fluorine to the Salifert Trace mix and look for precipitation. Would that work? Which option is better you think? Thanks

 

[Randy Holmes-Farley Verified Community Expert]

Thanks for all your advices. Last question, is it ok to add the Fluor to the top up RO water and carefully do the math according to the evaporation. I can also add it to my trace elements (Salifert Trace Hard). Those trace elements already contain Fluoride but i don't know if that's the same as Fluorine. Would it be Sodium Fluorine you think? I can slowly and carefully add Sodium Fluorine to the Salifert Trace mix and look for precipitation. Would that work? Which option is better you think? Thanks

Fluorine is the name of the element. Fluoride is the chemical form that is the only form you should distort are likely to find at all.

You can likely add it to the supplement you showed, but how do you know you need that much?

 

[acro_lover]

Fluorine is the name of the element. Fluoride is the chemical form that is the only form you should distort are likely to find at all.

You can likely add it to the supplement you showed, but how do you know you need that much?

I am doing monthly ICP's and it was showing always very little close to nothing. I started adding 160ml to my newly mixed and do my weekly water changes with Flurine boosted saltwater. I have mostly acros and they seem to love it. The tips on some of them turned very blue. This is where i thought it will be better to dose it daily instead of 160ml all at once. Tank is 1000L. Fauna Marin says it can be added to the sodium bicarbonate, so i thought, lovely i will save a doser, however it didn't look ok when i started mixing it. And with the 160ml i add every week my fluorine still comes very low 0.5-0.6
I will try adding it to the Salifert Trace mix and will look carefully for precipitation. Is there anything else I should watch for? Any other precautions? I assume if i dont see any crystals, that means is ok? Correct?

 

[Randy Holmes-Farley Verified Community Expert]

I am doing monthly ICP's and it was showing always very little close to nothing. I started adding 160ml to my newly mixed and do my weekly water changes with Flurine boosted saltwater. I have mostly acros and they seem to love it. The tips on some of them turned very blue. This is where i thought it will be better to dose it daily instead of 160ml all at once. Tank is 1000L. Fauna Marin says it can be added to the sodium bicarbonate, so i thought, lovely i will save a doser, however it didn't look ok when i started mixing it. And with the 160ml i add every week my fluorine still comes very low 0.5-0.6
I will try adding it to the Salifert Trace mix and will look carefully for precipitation. Is there anything else I should watch for? Any other precautions? I assume if i dont see any crystals, that means is ok? Correct?

Sodium carbonate dosing solutions are often twice as concentrated in sodium as is the FM bicarbonate you mention. That may be the problem.

The only possible problem with adding sodium fluoride to an ordinary dosing solution is precipitation of a solid. If that does not happen, you are ok.

I would not mix it into acids. Hydrofluoric acid is a dangerous material.

 

[acro_lover]

Great, thanks a lot. I will update everyone here how the mixing with the Salifert trace went, so at least people will know. Thanks a lot Randy for all your help

 

[Randy Holmes-Farley Verified Community Expert]

Great, thanks a lot. I will update everyone here how the mixing with the Salifert trace went, so at least people will know. Thanks a lot Randy for all your help

You're welcome.

Good luck. )

 

[acro_lover]

You're welcome.

Good luck. )

You're welcome.

Good luck. )

Hi @Randy Holmes-Farley .
Here are the results from the test. I added 10 ml of Sodium Fluoride solution to 10 ml of Salifert Trace Elements, which, according to the label, contain Cobalt, Zinc, Iron, Manganese, Copper, Vanadate, Fluoride, Barium, and Selenate. Next to the cup with the mixture, I placed another cup containing 20 ml of Salifert Trace Elements for reference. I did not observe any precipitation, sediments at the bottom, or floating particles; the liquid remained clear. The only change I noticed was a slight tint that developed, similar to the effect of adding a drop of milk. However, this change was so subtle that without the reference cup beside it, I doubt I would have noticed it.What are your thoughts? Is this a successful outcome? Can I proceed to mix on a larger scale, such as combining 1 liter of Salifert Trace Elements with 1 liter of Sodium Fluoride ( I am following your recipe from the archive?

 

[acro_lover]

@Randy Holmes-Farley , would you say this is ok to dose in the tank? Thanks a lot.

 

[Randy Holmes-Farley Verified Community Expert]

There is some very fine precipitate there. Tiny particles give a bluish color by light scattering. Without knowing what it is, I cannot be sure if it will dissolve in the tank water, but it probably will and is worth trying.

 

[acro_lover]

Amazing, thank you very much @Randy Holmes-Farley . Have a lovely weekend.

 

[Randy Holmes-Farley Verified Community Expert]

You’re welcome.

Happy Reefing!

 

[acro_lover]

Hi @Randy Holmes-Farley. I have carefully red your instructions regarding cobalt dosing. Unfortunately i cant find cobalt sulfate in the UK but can find Cobalt (II) Chloride Hexahydrate 97%. Would that be ok? The manufacturer says that: Minimum Assay as Co: 23.5-25.0% w/w. Is that the weight?
If yes, then:
25% cobalt by weight

I have to Dissolve 1 g in 1 L RO/DI, and the concentration is 250 mg/L, or 250 ug/mL.

Adding 1 mL (250 ug) to 100 L of aquarium water boosts cobalt by 2.5 ug/L.

Is my math correct?

Also for Iron, can i use:
Iron (III) Chloride 6-Hydrate 97% ACS
or
Iron (III) Chloride Anhydrous
Those 2 are easy to source through a local company.

Thanks a lot for all your help.

 

[acro_lover]

any thoughts anyone? anyone dosing diy cobalt and iron ( other than ferrion tablets)?

 

[Randy Holmes-Farley Verified Community Expert]

Sorry, I missed placed this question.

Cobalt chloride is just as suitable as cobalt sulfate.
Assuming it is 24% cobalt, then:


Dissolve 1 g in 1 L RO/DI, and the concentration is 240 mg/L, or 240 ug/mL.

Adding 1 mL (240 ug) to 100 L of aquarium water boosts cobalt by 2.4 ug/L.

 

[Randy Holmes-Farley Verified Community Expert]

If you cannot find ferrous gluconate, it would at least be better to find iron (II) sulfate (ferrous sulfate). Ferric iron (iron (III) that is not chelated is especially prone to precipitation as Ferric hydroxide.

 

[acro_lover]

If you cannot find ferrous gluconate, it would at least be better to find iron (II) sulfate (ferrous sulfate). Ferric iron (iron (III) that is not chelated is especially prone to precipitation as Ferric hydroxide.

Thank you so much for all your help as always. The local chemical company has Iron (II) Sulphate Heptahydrate. That is Ferrous Sulphate, isnt it? Their web page says, minimum assay >98.1% (screenshot attached).
Is my math correct:

If i dissolve 1g in 1L, concentration is 981 gr/L, or 981 ug/ml.
Adding 1ml (981ug/ml) to 100L will boost iron by 9.81ug/L. Is that correct?

And lastly, probably is not a good idea to mix it with the cobalt chloride, but since the cobalt will be in a very small amount- do you think that should be ok? I will probably give it a try and carefully look for precipitation but wanted to check with you first in case there is something very basic that i am missing.

Thanks a lot.

 

[Randy Holmes-Farley Verified Community Expert]

It can be hard to predict complex redox reactions, but I’d try mixing them and if no apparent precipitates form within a few min, it is probably ok.

 

[acro_lover]

It can be hard to predict complex redox reactions, but I’d try mixing them and if no apparent precipitates form within a few min, it is probably ok.

and the calculations look ok to you? Thanks