Alkalinity vs phosphate

Krzydmnd

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Hi all! So I'm not necessarily having any issues with my tank, in fact it's doing quite well from what I can tell. But I'm wondering how alkalinity relates to phosphate levels because I'm running lower on alk scale and higher on phosphate with no issues.

Alk is typically 7.6—8.0 using two part auto dosing. Phosphates are typically. 07 to .1.

From what I've read on "ideal" parameters these numbers are on the low end of alk and higher end of acceptable phosphate ranges but everything in my tank seems to be happy and healthy.. (Mostly sps, a few lps.) .

Are these two numbers relative to each other? If everything is working fine as is should I leave well enough alone?

For reference, it's 32g tank. I have no algae issues. I'm just wondering if adjustments on either parameter will have any benefit to coral health. Without disruption to the whole ecosystem.
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It seems for most that lower nutrients such as Nitrate and Phosphate work better with low Alkalinity and higher nutrient levels work better for high Alkalinity.

However, if it is working in your system I would not chase numbers. Just monitor and keep it in mind.
 
Both of those are perfectly fine for a SPS tank. I run my alk at 7.8-8 DKH and Phosphates anything below 0.1 I ignore unless thers is some visual issue I can see that I need to do something about.
 
Tank is looking nice.

0.1 Phosphate is not really that high, but higher than some target.
 

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