10 giant Danios 10 pearl Danios 1 Firemouth cichlid 1 electric blue acara 1 rainbow cichlid?
The Pearl Danios are iffy with the cichlids. Too small. Would needs lots of safe escape areas. The giant danios may be ok if they are already adults. Bio-load looks fine. Can't speak as to the cichlids together as I don't know much about them.
I think cichlids are best in a cichlid only tank. Most like higher temps and pH than most community fish too.
I'm not worried about the pH only aggression