Aquawiz AFR Question

[mjuarez7]

Hello I just picked up an aquawiz I’m planning on dosing All for reef with it, during the dosing setup it asks to enter how much it would take to raise KH by 1dKH also how much it would take to raise by .01 dKH. I can’t find a calculator to do this measurement, tropic Marins website just gives you an estimate on what to start dosing with. If any of you guys have any experience dosing all for reef with an aquawiz I’d really appreciate it. I have a 120G dosing 37ml of AFR by hand a day right now if that helps. Thanks

 

[EnterName]

You can use the dosing calculator on this page. Simply enter 100L or your tank volume and you will see the corresponding calcium and alkalinity increment.

5mL in 100L corresponds to 2 mg/L Ca and 0.28dKH.
So 17.86mL in 100L will be 1dKH.

For your 120gal:
22.71mL correspond to 2mg/L Ca and 0.28dKH.
So 81.11mL in 120gal will be 1dKH.

 

[Otago]

Are you going to be autodosing based on the measurements ? That may not work because of the time delay between dosing and alk being available.

 

[mjuarez7]

Are you going to be autodosing based on the measurements ? That may not work because of the time delay between dosing and alk being available.

Yes I was planning on auto dosing but I am going to limit the max amount it doses per hour

 

[mjuarez7]

You can use the dosing calculator on this page. Simply enter 100L or your tank volume and you will see the corresponding calcium and alkalinity increment.

5mL in 100L corresponds to 2 mg/L Ca and 0.28dKH.
So 17.86mL in 100L will be 1dKH.

For your 120gal:
22.71mL correspond to 2mg/L Ca and 0.28dKH.
So 81.11mL in 120gal will be 1dKH.

Thanks, what about raising by .01 if you don’t mind me asking lol

 

[EnterName]

You can use the dosing calculator on this page. Simply enter 100L or your tank volume and you will see the corresponding calcium and alkalinity increment.

5mL in 100L corresponds to 2 mg/L Ca and 0.28dKH.
So 17.86mL in 100L will be 1dKH.

For your 120gal:
22.71mL correspond to 2mg/L Ca and 0.28dKH.
So 81.11mL in 120gal will be 1dKH.

Thanks, what about raising by .01 if you don’t mind me asking lol

Well 0.01dKH is 1/100 of 1dKH so simply divide the dosage by 100 and that's it:

17.86mL in 100L will be 1dKH. So 0.1786mL is 0.01dKH in 100L.

81.11mL in 120gal will be 1dKH, so 0.8111mL will be 0.01dKH in 120gal.

 

[mjuarez7]

You can use the dosing calculator on this page. Simply enter 100L or your tank volume and you will see the corresponding calcium and alkalinity increment.

5mL in 100L corresponds to 2 mg/L Ca and 0.28dKH.
So 17.86mL in 100L will be 1dKH.

For your 120gal:
22.71mL correspond to 2mg/L Ca and 0.28dKH.
So 81.11mL in 120gal will be 1dKH.

Thanks, what about raising by .01 if you don’t mind me asking lol

Well 0.01dKH is 1/100 of 1dKH so simply divide the dosage by 100 and that's it:

17.86mL in 100L will be 1dKH. So 0.1786mL is 0.01dKH in 100L.

81.11mL in 120gal will be 1dKH, so 0.8111mL will be 0.01dKH in 120gal.

So since I’m dosing 37 ml of AFR I did the calculations for 37 ml just want make sure they check out
For raising dKH by 1 I got 132.1 ml
And for raising by .01 I got 1.32 ml

 

[EnterName]

So since I’m dosing 37 ml of AFR I did the calculations for 37 ml just want make sure they check out
For raising dKH by 1 I got 132.1 ml
And for raising by .01 I got 1.32 ml

I don't know if I understand what you are asking.
According to the tropic marin dosing calculator 22.71mL AFR correspond to 0.28dKH in 120gal.

You have a 120gal tank, and you are dosing 37mL AFR. This is 0.46dKH in your 120gal tank:

37mL / 22.71mL ⋅ 0.28dKH ≈ 0.46dKH​

To raise alkalinity by 1dKH in 120gal you would need 81.11mL:

22.71mL / 0.28dKH ≈ 81.11mL/dKH​

For 0.01dKH you would therefore need 0.81mL (81.11mL / 100).

132.1mL AFR would be 1.63dKH in your 120gal tank:

132.1mL / 22.71mL ⋅ 0.28dKH ≈ 1.63dKH
​

I hope this helps, otherwise you will need to explain what exactly you are trying to do.

 

[mjuarez7]

So since I’m dosing 37 ml of AFR I did the calculations for 37 ml just want make sure they check out
For raising dKH by 1 I got 132.1 ml
And for raising by .01 I got 1.32 ml

I don't know if I understand what you are asking.
According to the tropic marin dosing calculator 22.71mL AFR correspond to 0.28dKH in 120gal.

You have a 120gal tank, and you are dosing 37mL AFR. This is 0.46dKH in your 120gal tank:

37mL / 22.71mL ⋅ 0.28dKH ≈ 0.46dKH​

To raise alkalinity by 1dKH in 120gal you would need 81.11mL:

22.71mL / 0.28dKH ≈ 81.11mL/dKH​

For 0.01dKH you would therefore need 0.81mL (81.11mL / 100).

132.1mL AFR would be 1.63dKH in your 120gal tank:

132.1mL / 22.71mL ⋅ 0.28dKH ≈ 1.63dKH
​

I hope this helps, otherwise you will need to explain what exactly you are trying to do.

I currently am dosing 37 ml of AFR because when I first started dosing I was dosing 22.71 ml and my tank required more my coral demand was too high and 37 ml is where I was finding stability

How would I calculate for 37 ml in my 120? Thank you

 

[EnterName]

I currently am dosing 37 ml of AFR because when I first started dosing I was dosing 22.71 ml and my tank required more my coral demand was too high and 37 ml is where I was finding stability

How would I calculate for 37 ml in my 120? Thank you

22.71mL ≈ 0.28dKH & 2ppm Calcium (your initial dose and the starting dose suggested by tropic marin)

so 37mL ≈ 0.46dKH & 3.26ppm Calcium (your current daily dose)

So you can tell your aquawiz that 81.11mL ≈ 1dKH and 0.81mL ≈ 0.01dKH and that you want to dose 0.46dKH each day. Through linear interpolation it should come to the conclusion to dose 37mL.

 

[mjuarez7]

Cool thanks appreciate it a lot. All for reef has a delay for when alkalinity comes in after dosing. Aquawiz tests every hour and doses every time alk is low but I’m worried aquawiz will dose too much at a time to try and get alk up right away as all for reef doesn’t register for a little while after being dosed. There’s a setting on Aquawiz app that is maximum dosing per hour how would I figure this out with it still keeping up with my coral demand.

 

[EnterName]

Cool thanks appreciate it a lot. All for reef has a delay for when alkalinity comes in after dosing. Aquawiz tests every hour and doses every time alk is low but I’m worried aquawiz will dose too much at a time to try and get alk up right away as all for reef doesn’t register for a little while after being dosed. There’s a setting on Aquawiz app that is maximum dosing per hour how would I figure this out with it still keeping up with my coral demand.

AFR is based on Calcium formate. The formate ion is used by certain bacteria to create bicarbonate ions which will then provide alkalinity. This process takes a while, so there is no significant alkalinity impact right after dosing.

If you are dosing 37mL a day and want to have a little bit of room for the controller you could allow it to dose up to 45mL or 50mL each day (1.9mL - 2.1mL per hour).
If it is actually "overdosing" due to the delayed effect of AFR, it should measure too high alkalinity once the delayed effect sets in and will stop dosing. On average it should dose 37mL per day this way assuming it is measuring alkalinity correctly.

 

[Randy Holmes-Farley]

Cool thanks appreciate it a lot. All for reef has a delay for when alkalinity comes in after dosing. Aquawiz tests every hour and doses every time alk is low but I’m worried aquawiz will dose too much at a time to try and get alk up right away as all for reef doesn’t register for a little while after being dosed. There’s a setting on Aquawiz app that is maximum dosing per hour how would I figure this out with it still keeping up with my coral demand.

I would not do it at all, but if you know you need 2 dKH per day (0.083 per hour) limiting it to a few times that amount per hour will limit the hourly swings from overdosing.