Hi Phishy25,
I don't like to tell you this but generally Pandas and Sterbais are not good match since their optimal water temperature is far apart.
I do have both of them. I keep my Pandas in unheated tank which around 68~72F with high oxygenated current from powerhead. And they do spawn regularly. On the other hand, Sterbais are kept ~82F~ and they too spawn every other day to everyday.
I know some people keep all the Corys in same community tank set up of around 75F and they may do ok in short term but I don't know the long term affect. Anyway, so if you can have 2 tanks and place them in each optimal water parameter, they would do better for you. Of course, you should have 4+ 6 would be better of each in each tank.
Of course, if you make any water parameter adjustment, please take some time to acclimate properly. So it would be less stressful for them.
And if you look for the different Cories to mix them together in one tank, please do some research of their optimal water parameter(like specie profile) before you try. Both you(they would live longer with less illness) and the fish would be much happier if they kept in similar water parameter of their origin.
Anyway, good luck with your fish.