Tropic Marin All for Reef.

[Randy Holmes-Farley]

This statement by BRS, presumably provided by TM is simply wrong since it SHOULD NOT EVER be scaled by volume:

All-For-Reef

Tropic Marin All-For-Reef is a revolutionary approach to dosing, combining calcium, alkalinity, and other trace elements into a single, easy to use solution. It's no longer necessary to maintain two, three, or four solutions, or a complicated reactor. All-For-Reef is a balanced source of calcium...

www.bulkreefsupply.com

"
Specifications (per 500 mL)

• Carbonate Hardness Concentration: 2,800 dKH"

dKH as a unit of measure literally means:

" As a unit 1 dKH is the same as 1 °dH which is equal to approximately 0.1786 mmol/L or 17.86 milligrams (mg) of calcium carbonate per litre of water, i.e. 17.86 ppm."

dKH - Wikipedia

en.wikipedia.org

What is the alkalinity in the entire ocean? Same as in 1 mL: ~6.5 dKH

@Lou Ekus
@Hans-Werner

 

[ovicez2004]

Can you show in a picture or write what the bottle says exactly? Is it dKH per volume?

Tropic Marine uses some nonstandard (incorrect) ways of describing alkalinity that may have translation issues.
Hans Werner gives the concentrations here:

Where can I find the dosing calculator for Tropic Marin All for Reef (AFR)?

I remember it used to be at the bottom of the tropic marin site but it's no longer there. Does anyone know where I can find it again? My alk is currently 6.7 and I want to raise it to 8.0 (tank volume is 95 gallons). The instructions only say to add 5ml per 25 gallons but I have no idea how...

www.reef2reef.com

"The concentrations for All-For-Reef solutions, no matter whether bought as solution or self-prepared from All-For-Reef Powder, are 43000 ppm calcium, Ca, 6000 dKH per liter alkalinity (as alkalinity-precursors), 1900 ppm magnesium, Mg, 780 ppm strontium, Sr and 34 ppm iodine, I."

And BRS gives it here:

All-For-Reef - Powder Mix

Tropic Marin All-For-Reef revolutionized aquarium additive dosing with their original pre-mixed solution, and now this same formula is available in an ultra-concentrated crystalline form that you can easily mix at home, making it more economical for systems of all sizes. All-For-Reef powder...

www.bulkreefsupply.com

We can extract from these that the alkalinity of AFR is 6,000 dKH. We can then use a calculator like this one and the entry for my DIY #1 (alk = 5,300 dKH) and then if you want to be very accurate, correct it by reducing the amount needed by a factor of 6,000/5,300 = 1.13 (13% reduction in dosing amount needed per alk boost).

Reef Chemistry Calculator

The problem from TM arises that they sometimes use words like dKH per 500 mL (or other volume), which is an incorrect use of the units. dKH is already per unit volume, and the dKH in AFR (or anything else) is the same whether it is a volume of 1 mL or a million liters.

 

[ovicez2004]

Randy, I want to thank you for your answer. Hans Werner explanation in that post you attached was the one that opened my mind.

 

[Randy Holmes-Farley]

Yep, that picture of the bottle shows the confusing dKH per volume.

 

[Lou Ekus]

As you all know, I am not a chemist, and I never pretend to be one! So I am not the best company person to answer this quesiton. It looks to me as it the word "concentration" is incorectly be used. I think this refers, in some way, to the total amount of alkalinity contained in the full volume of the liquid in the bottle. The numbers work out pretty closely if you look at it that way. This may. very well have been a translation error. We try to catch them all, but sometimes they "slip through". I appraciate you all pointing this out and I will be speaking with the team in Germany about this. Obviously, it will take some time for us to get the products with corrected labeling inot the US market. But we will correct the error.

 

[Randy Holmes-Farley]

As you all know, I am not a chemist, and I never pretend to be one! So I am not the best company person to answer this quesiton. It looks to me as it the word "concentration" is incorectly be used. I think this refers, in some way, to the total amount of alkalinity contained in the full volume of the liquid in the bottle. The numbers work out pretty closely if you look at it that way. This may. very well have been a translation error. We try to catch them all, but sometimes they "slip through". I appraciate you all pointing this out and I will be speaking with the team in Germany about this. Obviously, it will take some time for us to get the products with corrected labeling inot the US market. But we will correct the error.

Thank you, Lou.

 

[Hans-Werner]

Please see my reply here

If it has been confusing folks since AFR came out I am very sorry but it skipped my attention. Are there questions related to the "amount" of alkalinity AFR adds in this forum?

I can't recall getting an e-mail asking how much alkalinity AFR doses based on the claims we make in the instructions.

The reason behind this "false" claim is, that I thought noone would understand, that the one liter bottle has 6000 dKH alkalinity and the half liter bottle also has 6000 dKH alkalinity. Should we have taken as prerequisite that everyone knows dKH is a concentration and not a quantity they can dose?

I know it is not your job, but maybe you can suggest how we can convert this concentration to a quantity that can be dosed given in units almost everybody understands?

I can't add much more to this question here at the moment.

The up-to-date concentration is ca. 6.000 dKH as alkalinity precursors. We have increased it from 5600 after the start of the product.

 

[surf165]

How much are you dosing daily?

In my 85 gallon system I’m dosing 15ML a day.. So like a tablespoon. Keeps my Ali near 9/9.3. If it drops lower I dose a cap of Bionics.