Dosing trontium cloride

[Girish23]

I have 185 gallon tank i like to dose tronstuim cloride in tank. How much i aprox dose in it for good result.

 

[Randy Holmes-Farley Verified Community Expert]

I personally do not believe strontium dosing is useful in ordinary reef tanks.

But if you chose to dose it, I'd maintain natural levels in the water based on testing, rather than randomly dosing it.

 

[Girish23]

What is the natrual level of tronstium tell me how i dose strontium cloride if i want to dose

 

[Randy Holmes-Farley Verified Community Expert]

I discuss strontium here:

Aquarium Chemistry: Strontium and the Reef Aquarium ? Advanced Aquarist | Aquarist Magazine and Blog
http://www.advancedaquarist.com/issues/nov2003/chem.htm

If you want to dose it, you dissolve it in some fresh water and add that to the tank. How much depends entirely on how much you need to add to get to natural levels (if any).

 

[Girish23]

There is any stronstium calculator avilable online

 

[Randy Holmes-Farley Verified Community Expert]

I've not looked for it, but it is fairly unlikely as it has no consumer use. Chemical companies are often reluctant to sell to consumers.

 

[JimWelsh]

What is the natrual level of tronstium tell me how i dose strontium cloride if i want to dose

The first question you should ask is, "How can I test to know what my strontium level currently is?" Once you are able to test for it, then we can discuss dosing.

 

[Girish23]

my stronsium level is 0.04 ppm untill today. i use salifer test kit for cheak this one

 

[JimWelsh]

my stronsium level is 0.04 ppm untill today. i use salifer test kit for cheak this one

The Salifert strontium test kit cannot test that low. It has a resolution of about 4 PPM. Do you mean that in the last step, you used 0.04 mL of reagent? Also, you say, "until today". What is the reading today? Isn't that the more relevant number?

 

[Girish23]

yes .04ml

 

[JimWelsh]

If I understand your answer correctly, then according to the instructions for the Salifert strontium test kit I have, using 0.04 mL of the final reagent indicates a result of 16 PPM strontium, which is twice the NSW level.

 

[Girish23]

Ya it is 16 ppm now but is buffer 6 ppm every week so i how much i use tronstium cloride to bring it to 16ppm

 

[Randy Holmes-Farley Verified Community Expert]

Ya it is 16 ppm now but is buffer 6 ppm every week so i how much i use tronstium cloride to bring it to 16ppm

You do not want 16 ppm strontium in a reef tank. Natural level is about 8 ppm.

 

[Girish23]

So what i do after they drop below 8 some were abt 5 ppm

 

[Randy Holmes-Farley Verified Community Expert]

So what i do after they drop below 8 some were abt 5 ppm

As I said, I would do nothing. But if you really want to dose strontium, you need to know what you are starting with, the anhydrous form or the hexahydrate. The latter has 6 molecules of water for each SrCl2. You need to use more of that one than the anhydrous form.

 

[Girish23]

Now i use hexahydrare How much i use if i add 3 ppm in the tank hexahydrate every week or so next time i bought anhydrous form of srcl2

 

[Randy Holmes-Farley Verified Community Expert]

Now i use hexahydrare How much i use if i add 3 ppm in the tank hexahydrate every week or so next time i bought anhydrous form of srcl2

IMO, that is likely much more than the demand and I do not recommend it.

But if you really want the math...

10 g of strontium chloride hexahydrate is 33% strontium and so contains 3.29 g (3,290 mg) of strontium.

Dissolve that in 100 mL of fresh water.

If you add that 1 ml of that solution per gallon of tank water, strontium will rise by 32.9 mg Sr/ 3.785 L = 8.7 mg/L.

So you'd add about 1 mL per 3 gallons of tank water to boost by 3 ppm.

 

[Girish23]

if i choose use anhydrous stronstium cloride what is the calculation of it.

 

[JimWelsh]

if i choose use anhydrous stronstium cloride what is the calculation of it.

Anhydrous STRONTIUM (that's how it's spelled :mad: ) chloride is 55% Sr, so you would use only 60% of the recipe Randy gave above to get the same result.