How are these parameters

DEE’S reef

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So I wanted to know if my parameters are good for coral and coralline algae to start to appear and if the tanks maturing it 2 months old finish cycle like December 12
Here’s the average after 6 weeks testing twice a week
Salinity 1.02683
Ph 8.16
Alkalinity 10.66
Calcium 401.66
Magnesium 124.11
Nitrate 12.08
Phosphate 0.1
Ammonia 0.05
Nitrate 0
Also these were todays testing if you guys where wondering
Salinity 1.025
Ph 8.2
Alk 10
Calcium 410
Magnesium 1250
Nitrate 5
Phosphate.1
Ammonia + nitrite 0
 

get-salty

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Salinity 1.025
Ph 8.2
Alk 10
Calcium 410
Magnesium 1250
Nitrate 5
Phosphate.1
Ammonia + nitrite 0


Parameters are excellent but i do have to ask about the alk. Is that the # you're aiming for or its in the salt that you're using?

For me, alk is around 8.3-8.5 and i use RS Blue bucket.

Thanks
 

Privateye

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All of this looks fine to me. I agree that the alk is on the higher side of fine, but I'd still consider it fine.

Seawater tends to be closer to 7-8 dKH, depending on location. However, I've seen benefits to keeping it closer to the 9-10 range. It makes your pH a bit more stable, and gives you some wiggle room for it to fall before low alk becomes an issue.

In my experience I've seen coralline algae struggle with high alkalinity before corals show signs of stress. As I recall, around 12 dKH and above I saw steep drop-offs in coralline algae, or it would not grow. Below around 9 dKH it grows a lot. I haven't seen an alkalinity too low for it yet, but I'm sure that points exists. I've see issues with low alk present with the corals before the coralline algae.

Just my observations over the years, across multiple systems.
 

Randy Holmes-Farley

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Do you think these numbers are stable enough for coralline algae

The numbers are fine. Can’t tell anything about stability from an average.
 
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DEE’S reef

DEE’S reef

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I haven’t dosed anything just the numbers from the salt. Also i can send the 7weeks of testing I’ve done in a little bit if that help’s figuring out stability of the tank
 
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DEE’S reef

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Are these parameters stable for coral introduction also are they stable or good enough for coralline algae growth.
 

Randy Holmes-Farley

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Stability of those chemical parameters is not generally the issue for either of those requests, as opposed to a bunch of other things (bacteria and other microorganisms, absolute values of some other chemicals, light, flow, etc.), but the strict answer about stability is yes.
 

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