Brown Spots

Question
Hi,
I have a question about my beta fish I got yesterday. I noticed that she has two brown spots on her tail. I tried looking it up but nothing matched. So if you can please help me.

Answer
Without a picture it is hard to know, but it could just be the fish's coloring. If you upload a picture of the fish showing the spots, it would help me help you much better. I do not like guessing as it can become harmful to the fish if we start using all kinds of medication.