Currently I have a small Yo Yo Loach and Honk Kong Loach in my 20
Gallon tank and later this week I plan on getting a few Corys. How
many Corys can I get considering I would like to add some mid level
swimming fish later this month?

What other peaceful fish would you guys recommend that will not nip at
the plants.

Ph. 7.4
temp: 78 f
Various plants - Swords, Java Ferns, Mondo Grass
Driftwood