Bolus dosing

[Mo.]

I must be missing something here but I don’t see what was described in the video which was stable alk throughout the day. That claim was also made earlier in this thread and has not yet been demonstrated. What I see is a spike at the beginning of the day (when bolus is dosed) followed by decline in alk with the majority being used during the photo period.
That is what would be expected regardless of what chemical used for dosing (not considering ph). It is not, in my interpretation, what was claimed to happen in the video.
I for example dose sodium hydroxide at night. I test at the same time every morning (after final dose before lights on). I get a stable number each day I test. I don’t have an alk monitor, but I have zero doubt my graph would look very similar to yours up until my first dose at 1am. That graph would then show a gradual increase up until my final dose at 6am.
Fantastic claims require fantastic results. I don’t see anything fantastic here.

Nonsense!

Have you seen the alk units?

I must be missing something here but I don’t see what was described in the video which was stable alk throughout the day. That claim was also made earlier in this thread and has not yet been demonstrated. What I see is a spike at the beginning of the day (when bolus is dosed) followed by decline in alk with the majority being used during the photo period.
That is what would be expected regardless of what chemical used for dosing (not considering ph). It is not, in my interpretation, what was claimed to happen in the video.
I for example dose sodium hydroxide at night. I test at the same time every morning (after final dose before lights on). I get a stable number each day I test. I don’t have an alk monitor, but I have zero doubt my graph would look very similar to yours up until my first dose at 1am. That graph would then show a gradual increase up until my final dose at 6am.
Fantastic claims require fantastic results. I don’t see anything fantastic here.

clearly it’s gone right over your head!

There is a 0.2dkh swing over the whole day!!!

After dosing 600ml alk solution, where is the ALK spike you speak of??

 

[danimal1211]

Congrats I guess on reducing your alk consumption while dosing the same amount. I guess we have different goals in reefing

 

[Garf]

There is a 0.2dkh swing over the whole day!!!

Do you think it's something in the Alk solution? if so swopping it with normal bicarb could iron that one out. Someone else earlier in the thread was trying this, then went radio silent.

After dosing 600ml alk solution

Well, your tank is massive, lol. What's that? 1 DKH or so?

 

[Garf]

There is a 0.2dkh swing over the whole day!!!

Are you also getting a large disparity in calcium consumption, mentioned in the FM HTU, which when combined with the missing Alk indicates precipitation?

 

[Mo.]

Yes, I do like to do my homework. However, I can't remember everything, lol. Was that the kalk tank?

This is Hard work. Lol

 

[Mo.]

Do you think it's something in the Alk solution? if so swopping it with normal bicarb could iron that one out. Someone else earlier in the thread was trying this, then went radio silent.

Well, your tank is massive, lol. What's that? 1 DKH or so?

Not 0.2!!!!

 

[Randy Holmes-Farley Verified Community Expert]

Nonsense!

Have you seen the alk units?

clearly it’s gone right over your head!

There is a 0.2dkh swing over the whole day!!!

After dosing 600ml alk solution, where is the ALK spike you speak of??

How much alk do you dose in dKH per day?

There’s just no possibility that dosed bicarbonate does not show up as soon as it mixes in. If indeed there’s some sort of delay, it is not bicarbonate being dosed.

 

[Randy Holmes-Farley Verified Community Expert]

You can see the alk is pretty stable (throughout the day) and the pH spikes.

I think this is the dilemma. Where does 600ml bolus of alk dosed at 10.30 go? It hasn’t boosted the alk reading. The alk was tested 5 times that day. I usually check it once a day.

Where in your system did you dose it?

 

[Garf]

Not 0.2!!!!

Appears 600mls of bicarb in a 1000gallon is only 0.4dkh anyway. I imagine if I was being awkward I could say testing error is likely to account for any oddities in graphs at these low consumption levels.

 

[areefer01]

Appears 600mls of bicarb in a 1000gallon is only 0.4dkh anyway. I imagine if I was being awkward I could say testing error is likely to account for any oddities in graphs at these low consumption levels.

Unless it is continuous monitoring and/or testing there will be time in-between results which may create noise. If the trident was used then the default testing schedule is 4 Alk, 2 Ca, 2 Mg. It can be configured to run 24 or hourly which is 24 Alk, 12 Ca, 12 Mg but at a cost of reagents.

Even an hour sample rate may not be enough.

 

[Mo.]

How much alk do you dose in dKH per day?

There’s just no possibility that dosed bicarbonate does not show up as soon as it mixes in. If indeed there’s some sort of delay, it is not bicarbonate being dosed.

I was dosing approx 0.75 dKH per day.at that time.

I was using balling light alK solution, which is commercially available.

 

[Mo.]

Unless it is continuous monitoring and/or testing there will be time in-between results which may create noise. If the trident was used then the default testing schedule is 4 Alk, 2 Ca, 2 Mg. It can be configured to run 24 or hourly which is 24 Alk, 12 Ca, 12 Mg but at a cost of reagents.

Even an hour sample rate may not be enough.

So now you’re going to put this down to measurement error???

Whilst all Of your threads rely on the same technology?

Really????

Any more space in the sand to get any more heads in….. what a joke.

 

[Mo.]

Appears 600mls of bicarb in a 1000gallon is only 0.4dkh anyway. I imagine if I was being awkward I could say testing error is likely to account for any oddities in graphs at these low consumption levels.

So it may be that I’ve been dosing nothing??!! That’s what you’re saying?

 

[danimal1211]

So now you’re going to put this down to measurement error???

Whilst all Of your threads rely on the same technology?

Really????

Any more space in the sand to get any more heads in….. what a joke.

Is it not plausible to consider whatever proprietary chemicals are in balling light may be effecting test results? It at least seems more plausible than what was discussed in the video I watched.

 

[Mo.]

Unless it is continuous monitoring and/or testing there will be time in-between results which may create noise. If the trident was used then the default testing schedule is 4 Alk, 2 Ca, 2 Mg. It can be configured to run 24 or hourly which is 24 Alk, 12 Ca, 12 Mg but at a cost of reagents.

Even an hour sample rate may not be enough.

pH is continuous but recorded hourly.

Alk was being tested 5 times per day around that time right before and after the dosing time and after.that to get the trend. That is sufficient to get the idea of what happens.

 

[Mo.]

Is it not plausible to consider whatever proprietary chemicals are in balling light may be effecting test results? It at least seems more plausible than what was discussed in the video I watched.

Yes it is- which is what I had originally come to this thread with.

But because you all skim read you keep
Missing pertinent points which was my other point.

However- balling light mix has been present for many years and is available to anybody.

I did question whether it might be a bicarb/ carbonate mix, to explain the pH, but that doesn’t explain the Alk stability.

Nor does what Garf said- that’s just silly.

 

[Mo.]

Don’t forget I’m dosing kalk now.

I can’t go and change this or that.

Those results are
Genuinely recorded by the apex

And my tank is half full of sps corals and rising……

 

[Garf]

you are still going to refuse to try it yourselves…… lol

Literally thousands of folk have bulk dosed Alk with bicarb, including myself. Low consumption levels are subject to a magnifying error element.

 

[areefer01]

pH is continuous but recorded hourly.

Alk was being tested 5 times per day around that time right before and after the dosing time and after.that to get the trend. That is sufficient to get the idea of what happens.

Now you guys are trying to debunk the technology.

Next will be my reef keeping skills and then my intelligence. Thats why I posted it all
Up in advance so we can skip the BS that you are still going to come up with AND you are still going to refuse to try it yourselves…… lol

I'm not debunking only talking about measurements and granularity. Nothing more. I believe I said it elsewhere that who uses what doesn't matter to me.

 

[danimal1211]

Per Randy’s recipe #2 (sodium bicarbonate)…