Nice
I got a pair last year and they are great with both about 4-inches.
They had what amounted to a quarrel about a month ago.
Posturing, spinning around each other, some chasing and biting of fins with both giving as good as they got.
Was getting concerned I would have to break them up but then as quickly as it started it stopped.
Both get along fine again and their fins are fully healed like nothing happened.
I can only assume they were going through some sort of courting.