I agree with Cam your tank should be bigger for 2.

A Rule I have been told numerous times on here is 1 frog per 10 Gallons.

Frogs like space and room to move and hide and not necassarily prefer company so space to be by themsellves when they need it is important to reduce stress levels.

I would get a 20 gallon for a pair ... 10 gallon only should have one frog...

Hope that helped.