Disease on Pepper

[greenthumbomaha]

This is the Chef Jeff's Caribbean Pepper that I purchased for a fun overwinter project. Sadly it started displaying leaf spot ( hard for me to tell them apart).

It is such a slow grower, the peppers are just starting to form. No visible specks on the babies.

I removed the offending 4 leaves, 3 on bottom and one midway. What can I use to control further spread, that would be safe to bring indoors in the next 2-3 weeks?

I am also thinking of repotting to coir (wondersoil) before bringing indoors.

- Lisa