Love it! Looks to me at least 1 of your ruby barbs is male so far. C. parva spreading slowly but surely. Buces looking good too.
I'm not loving the Columbian? tetras as they age. I'm not a "hump-ish" head/body fan...cichlids & rainbows especially, sorry, I'm adding those tetras to my list. Take that not as a criticism of you or your tank, it's awesome as always!