Rough guidelines for dKh and nutrients question

Wasabiroot

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Hey all!

Oftentimes when posting parameters here, especially in regards to nutrient or alkalinity issues, one often reads the phrase "your x is too low for that alk" or "I'd raise nutrients for that dKh". It doesn't seem that there is a particular threshold for this statement other than intuition and experience (that I can find). Obviously coral is a living animal with a complex relationship with its environment, so no one combination of parameters is ideal or perfect. But wondering (especially from acro keepers) what alk is appropriate with what level of nutrients? For example. What can one get away with at phosphates around .2? How do nitrates play into that?
I don't put much stock in the Redfield Ratio as that seems misappropriated since it really refers to planktonic composition...but what numbers are people thinking in their head?
Wondering what the maximum/minimum phosphates and nitrates you'd run are at the following dKh:
1. 8
2. 9
3. 10
4. 11 and up

Just curious! Hopefully I made sense.
 
Certainly - I think as far as NSW ish levels go, that is about what we see frequently touted. I'm wondering more along the lines of 11dKh for example - burnt tips etc. and what levels of phosphates/nitrates are doable at that dKh. Maybe looking to get a few data points :)
 

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