u/Sea_Tomatillo1434

I have a 55 gallon tank, with 30 cardinal tetras, 10 glofish tetras, 5 peppered cory and 1 small bristlenose pleco. I have a decent amount of plants as well. I have a fluvel fx2 filter.

I was wondering whether I am already at the limit for fish or can I still add more cardinal tetras and some more peppered cory as well...

Any advice?