Nitrates bottoming out and SPS

Also have this weird crap growing on the back wall and a tiny bit in the rock. It’s the reason I was running gfo to begin with. Got it to go away before with heavy use of gfo, stopped using it, and it came back
 
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My tank I can’t get po4 or no3 up at all so I have now just been dosing amino acids daily and it has help out my tank a lot
 
This ^^^^^^^^^^^^^^^^^^^^^^^^^^

If it's an established tank phosphate at .06 is fine - keeping it stable it most important. Montipora and birdsnests go bonkers with phosphate .05 - .1

.03 gives you wiggle room for more feeding.

If you have zero or hyper low nitrate remember to raise it *slow*. Acropora in particular don't take kindly to rapid nutrient increase.
Go bonkers in a good way or bad way?
 
I would manually remove all the green stuff and this would be similar to harvesting algae from a refugium.

Get a clean up crew like tangs to pick at the green stuff and start thinking about exporting your nutrients.

Refugium will address both nitrates and phos. Don't skimp on lighting.

I use a 75W led for planted tanks and can knock everything to 0 if I'm not careful.
 
I would manually remove all the green stuff and this would be similar to harvesting algae from a refugium.

Get a clean up crew like tangs to pick at the green stuff and start thinking about exporting your nutrients.

Refugium will address both nitrates and phos. Don't skimp on lighting.

I use a 75W led for planted tanks and can knock everything to 0 if I'm not careful.
I’ve got a good fug that runs pretty efficiently. I just set it up a few weeks ago and tripled the chaeto ball size.

well, good/bad news. I thought nitrate/phosphates were my issue. Probably not. Just found out my refractometer is way off, despite calibrating it a week ago with 1.0264 solution. Salinity is at 1.029. Also, the trident is way off calibration. Alk with salifert is 9.3 when trident says 8.6. I had this double tested at my LFS as well. Doofus mistakes.
 
I’ve got a good fug that runs pretty efficiently. I just set it up a few weeks ago and tripled the chaeto ball size.

well, good/bad news. I thought nitrate/phosphates were my issue. Probably not. Just found out my refractometer is way off, despite calibrating it a week ago with 1.0264 solution. Salinity is at 1.029. Also, the trident is way off calibration. Alk with salifert is 9.3 when trident says 8.6. I had this double tested at my LFS as well. Doofus mistakes.

Like I mentioned in my previous post, I had a feeling those acros were getting some alk burn by the looks of them

Take into account that all minerals will test/ be higher if salinity is elevated too, for example if calcium is testing at 460 @1.029××
It may actually be 420-430 at 1.026xx etc etc, alk and mag will be affected likewise, Im not certain there is a calculator as different salts have different mineral content.

Trident can be a useful tool to see trends, but it should be monitored via at least 1 reliable titration test per week to compare results.

Really sorry to hear your troubles, hope everything bounces back quickly
 
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