Low Alk question

[ReefKeeperMark]

Hi guys
I'm struggling with low dKH @5.8
Ca 470 Mg 1290
I'm using a calcium reactor with additional chamber with a ph controller.
Drip rate from the reactor is 126 per min or 8ml per min.
My system is 725L

I think I need to up the reactor output but wanted to check 1st.

Many thanks
Mark

 

[Randy Holmes-Farley Verified Community Expert]

Do you know either the pH inside the reactor (first chamber) or the alkalinity of the effluent?

 

[ReefKeeperMark]

Ph in the 1st chamber is set to 6.5 don't know the alk of effluent as I've just run out of my test kit.

 

[Randy Holmes-Farley Verified Community Expert]

If it really is pH 6.5, I'd raise the water flow rate through the reactor (the drip rate).

 

[ReefKeeperMark]

Ok will do thanks.

 

[Randy Holmes-Farley Verified Community Expert]

You're welcome.

Good luck and let us know how it works out.

 

[ReefKeeperMark]

You're welcome.

Good luck and let us know how it works out.

Will do.

 

[ReefKeeperMark]

Do you know either the pH inside the reactor (first chamber) or the alkalinity of the effluent?

Hi Randy
Just checked levels again today with new test kits.
Ca = 520
dKH = 7.3
Mg = 1620

Effluent rate 24ml per min
Effluent dKH 32

Salinity 35ppt
Temp 26c

 

[Randy Holmes-Farley Verified Community Expert]

That looks good to me.

If you want the alk to be higher, increasing the flow rate a bit would be the approach.

 

[ReefKeeperMark]

That looks good to me.

If you want the alk to be higher, increasing the flow rate a bit would be the approach.

Brilliant. Thanks again for your help. Much appreciated.
Mark

 

[Randy Holmes-Farley Verified Community Expert]

You're welcome.

Happy Reefing.