Well, you know how everyone on here feels about quarantine. You are going to have a form of nitrates unless you run macro algae. I always used macro algae, never went without it. But, without high nitrates it will die.
So yes, aquarium keeping is confusing. You can start with a pair of clowns.
Before you do. Drop in a piece of small shrimp. Not a whole shrimp. A small chunk. the size of a pinky nail.
For a few days watch your ammonia levels. If you don't get a spike in ammonia, you should be set.