Thank you so much Gwcreefer
That's a pass alert badge yellow/ safe.
Let's say you posted nothing in the description beyond the pic, and we work back to known tank conditions with zero description, only pics. This is my call:
You mentioned gha, very expected in new tank aging and maturation but also a direct visual proof of cycling... that detail begins the proofing for your cycle. I can see small amounts on frag rack and pump outflows. This is no critique, everyone reading will agree that's a great looking reef tank
The trace algae in the pics are visual benthic proof of your entire tank being cycled, your rocks were in the water the whole time like any other cycled reef.
Any surface that sat underwater long enough to host new benthic algae growth has exceed the time underwater that cycling charts show to be cycled for the crucial parameters.
That's why rocks covered in algae are cycled rocks, and that doesn't account for plant uptake by the actual algae
Algae rocks are compound ammonia scrubbers in that way
Your surface area stack, mid water, mimics every other pico, nano and full sized reef in scale that we see online for twenty years. Small variances tank to tank don't change outcome: if we swirl wastewater over those algae rocks, ammonia stays in control #1 rule of wastewater treatment science and reef tank cycling science.
So that means people who run seneye machines, today's best- reading nh3 hobby meter in my opinion, have documentation from their tanks that apply to yours, even though you don't have a seneye. Because we all mimic the rock stack mid tank we all get really tight controls on daily nh3 averages.
Nearly all seneye reefs using correct slide prep and a running meter reports that setup with light algae rocks, carrying fish and coral + daily feed everyday in the range of .001-.006~ nh3
We know you're cycled due to what the sum total of ten thousand other reefs just like yours running seneye report at the same age interval, and there were no stalled readings, none.
Also factor fish position... no struggle for air at the top, or laying half dead. Even distribution in clean bright water, open corals.
Your cycle is perfect, and cannot be undone. You have a really really helpful thread here to help others who struggle with what ammonia should be in a year old reef
Only the tank pic matters, not the readings. Don't add anything to the tank for assistance, your cycle is done locked and set
Any daily variance in ammonia is expected in respiring systems, it's presence here is good not bad.
This cycle is deemed in perfect condition, that's why things look so well.