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Ok, thats pretty good. The m/f ratio for livebearers is 3f/1m. You might want to add another female. I would add:
3 more cories
4 more danios
4 more rainbowfish
and maybe another female swordtail. Just don't add any more males, and if you see the males harassing the females, then you need more females.
I have baby ramshorn snails that are the size if a grain of sand right now! They grow extremely fast! When they get bigger they will be a mixture if blues browns and reds.