APEX DOS - Dosing Amounts

[jsbzcmcdaniel]

Hey all....

I recently decided to switch from my CalRX to APEX DOS to handle my cal and alk needs. I just took my CalRx offline and installed the DOS. My questions is, what should I start with as a daily dosage amount that is safe? I have it setup currently to dose 5ml of each for my 120g tank. I obviously don't know my cal and alk consumption so I don't was to nuke my tank. Your thoughts??

 

[Zach B]

In my opinion you want to know the tanks consumption before you start dosing more. I would start by testing my alk and calcium daily for a few days to a week and then base my dosing amount on that with the brs calculator. Best of luck

 

[jsbzcmcdaniel]

Thanks. My Alk & Cal are tested 4 times daily via a Trident. I’m just trying to avoid a major swing in Alk while I make the change.

 

[Randy Holmes-Farley Verified Community Expert]

Thanks. My Alk & Cal are tested 4 times daily via a Trident. I’m just trying to avoid a major swing in Alk while I make the change.

It's best if you know the alk demand in dKH per day.

Otherwise, just pick a lowish dose (say, 0.5 dKH per day) and adjust by trial and error from there.

 

[Betex]

Thanks. My Alk & Cal are tested 4 times daily via a Trident. I’m just trying to avoid a major swing in Alk while I make the change.

With a trident in place it’s pretty easy to get a good baseline. I would run tests every 2-4hrs just for a day and create a dosing schedule following the consumption. Although it can change every day when I did this my baseline stays pretty on point with a dkh variation of .5-.1


Here’s how I ended up dialing in my schedule. This allows me to increase and decrease just certain sections to match new demands.
The gap @3am is for calcium/mag dosing leaving 40ish minutes before alk resumes again

 

[Goldenvue]

@Betex that’s a lot of alk

 

[Betex]

@Betex that’s a lot of alk

It’s not too bad yet. I figured once I reach closer to 200s which I’m at about 160 I might add on a carx

 

[Goldenvue]

It’s not too bad yet. I figured once I reach closer to 200s which I’m at about 160 I might add on a carx

How big is your tank?

 

[Betex]

How big is your tank?

75g, it’s a modified rsr250 and have frag tanks all hooked up to it as well. But waiting on my new 225g

 

[Goldenvue]

Oh man what’s that torch?

 

[Betex]

Oh man what’s that torch?

Dragon soul got it as 1-2heads

 

[EakTheFreak]

Dragon soul got it as 1-2heads

I’d be fragging and selling those suckers!!

 

[Goldenvue]

Dragon soul got it as 1-2heads

That’s huge for two heads

 

[Betex]

That’s huge for two heads

It was 2 head about 1-2 years ago now it’s 50+

 

[Goldenvue]

Dm a price on a few of ya want to sell