New co2 Scrubber and Alk Drop!

[Jhillreef]

I just installed the BRS CO2 scrubber because my Ph can’t get over 8.00 have a big family so that’s probably the reason. Anyway, now my Alk is dropping since the install. Any idea why?

 

[blaxsun]

I assume this is through the Trident? Have you manually tested just to rule Trident error out?

 

[Jhillreef]

Yeah, I check with the salifert test. Which is always higher. But I use the trident one for consistency. But it’s been pretty consistent until I added the scrubber. Just odd to me

 

[blaxsun]

Yeah, I check with the salifert test. Which is always higher. But I use the trident one for consistency. But it’s been pretty consistent until I added the scrubber. Just odd to me

It's not a huge change (0.2) over 24 hours. Mine typically fluctuates more than that.

 

[Jhillreef]

Ok, what would be a more concerning drop? Like number wise ? Also, would the scrubber cause this drop?

 

[SWherrey]

Ok, what would be a more concerning drop? Like number wise ? Also, would the scrubber cause this drop?

Anything greater than .5 a spike up is a lot worse than a drop. By you adding a scrubber you increase ph which in turn increase alk demand

 

[ConsummatePro]

Graph your Alk against your pH. You’ll likely see the ph going up and the Alk dropping - which I’ve taken as a sign the corals are liking the higher ph and using more Alk (ie growing)!

here’s my recent example: I refilled my BRS jumbo CO2 reactor on April 1. See how the ph (blue) goes up and alk (orange) drops. Waiting for the Trident controlled dosing to catch up the alk now.

 

[CMO]

What is your PH at now? With higher PH you will see more alk draw IME.