this may help to know:
that's an api ammonia test
that reading has been found in 5 year running tanks, causing mayhem, fully cycled, and it's been found in brand new tanks spiked to the hilt with ammonia and legit uncycled.
you can't infer things about your aquarium from that reading.
we need a pic of your aquarium, not the test kit, to tell you about ammonia. ammonia is the 1 kit that isn't required to know in reefing, ironically. Let's see your tank pic for the tracing to begin, if you have a cycle issue it's about to get fixed mighty fast.
other kits will be a gradient challenge, but not ammonia, it's 100% predictable at all phases in reefing, just need to see that tank picture. if there are follow up questions I'll ask them, 90% of the time little details in a tank pic seal up your ammonia issues as either legit or just another api misread.
I have some 10+page trainwreck thread links handy where a reading like that in a years-old tank causes total chaos for the tank owner and the cycle umps trying to help them
ammonia control in reefing follows some hardfast rules we've forgotten about as old cycling science had us believe absolutely anything that test kit had to say, even if adulterants unstated were changing up the readings all crazy / reflecting nothing about the actual ammonia control of the system. you will not require any color gradient assistance to manage ammonia in a display reef tank, I can guarantee you that.
if your tank pic shows a sterile, brand new tank with no life in it then we'll have you fully cycled in a few days using a special trick.
and if there's life already in that tank, something interesting is coming up once we see the pics. I already have a 40 page thread running to handle these hard-to-handle ammonia issues, we will profile your aquarium and decide with thread it belongs in within about 10 seconds after seeing your tank picture
that reading, which appears to be classic 2 ppm, means absolutely nothing about the status of your tank's ability to handle ammonia. I've seen that same reading in thousands of fully running, mature and normal reefs. you can move rocks around inside a reef tank, kicking up waste, and generate a reading like that from a fully cycled reef and no, there wasn't any ammonia in the dust-up
all kinds of things adulterate api and red sea readings