I've been given conflicting advice with regard to how many fish it would be ok to put in my tank - depending on full grown size, I've been told around 30??
So far I've only got 19 and nothing that grows large - now I don't know what to do :unsure
I would suggest adding more panda cories, they really need to be in groups of at least 3, preferably 5 or more. I woulnd't add anything else, sometimes in smaller tanks too many species are just too many, and look confusing IMO.
I like to see a good variety of different species in the tank, I think that is just a personal choice thing, but I do take your point about more pandas