Dosing alkalinity more than calcium

Flyingbulldog · Oct 24, 2016

I am not sure if this is normal but we have been dosing more KH than Ca. We are dosing 44ml of Ca, 55ml of KH and 48ml of Mag a day. We have been using Seachem Reef Fusion 2 part and Kent Tech Magnesium. Tested few times this week and alkalinity has been stable at 7dKH but want it to be a little higher at least 8dkh. So my question is, when dosing 2 part, does it have to be a 1:1 ratio? How do we increase our KH to 8?

My test results this morning was
Salinity - 1.025
PH - 7.97
Ca - 420
KH - 7
Mag - 1380

Randy Holmes-Farley · Oct 24, 2016

It doesn't have to be 1:1.

I cannot be certain they made it exactly balanced, and water changes with salt mixes that do not match the tank can mess with the demand ratio.

Randy Holmes-Farley · Oct 24, 2016

7 dKH is fine, but if you want it higher you'll need to dose more each day.

Flyingbulldog · Oct 24, 2016

Thanks Randy! I will increase the dose slowly and test.

Milkmanskid · Oct 25, 2016

For my sake. Your going to dose more at an equal ratio to find stability?

reefguyty · Oct 25, 2016

For quite awhile I was dosing more kH than Ca. It slowly leveled out over time. Now it's switched and I'm dosing more Ca. I don't know if I'll ever know why :| lol

Randy Holmes-Farley · Oct 25, 2016

reefguyty said:
For quite awhile I was dosing more kH than Ca. It slowly leveled out over time. Now it's switched and I'm dosing more Ca. I don't know if I'll ever know why :| lol

You sure that isn't just dosing pump flow differences?

reefguyty · Oct 25, 2016

Randy Holmes-Farley said:
You sure that isn't just dosing pump flow differences?

It may be! I'm using the DŌS, it's probably a good idea to recalibrate the pumps.

Flyingbulldog · Oct 25, 2016

reefguyty said:
It may be! I'm using the DŌS, it's probably a good idea to recalibrate the pumps.

Yup. Recalibrate the pumps and check your test kits. Figured my test kit eas kind off so I went to the LFS. Although they used API test kits, I was relieved when they said my kH was at 8. My new test kits on the way on [emoji106]