I would choose cardnals over neons, they look similar and are bigger and hardier, but I believe neons are still good!
You could go with one big school or two smaller schools with two different species (I personally prefer only one schooling species)
Also!! Center piece fish. Are you looking for...
My uncle has one- he's incredibly sweet. The only time he's aggressive is when he thinks my aunt or uncle are getting hurt, and even then all he does is stand up and bark (me and my uncle were playfighting, its how I know)
He literally thinks he's one of the chickens, he'll walk with them and...
Adf tend to not work well with bettas because of their eyesight, i would stick with shrimp and snails.
Axolotles are best kept alone. Fish can nip at their gills and even get stuck in them.
Im not the best at stocking, so ill leave the 20 gal stocking to someone else.
Cardinal tetras need a 20 gallon minimum, and I believe that black neons do as well.
Ember tetras would be good, as well as green neon tetras.
A fish similar in personality would be chili rasboras. Another option would be celestial danios.
These fish would be comepletely fine with plants. Any...
The tank isn't quite finished, i still need substrate and a few more plants, but...
Heres Cinnabar! She was a bit of an impulse buy, i was trying to wait until the tank was done, but we went to petco to get dog food, my parents owe me at $60, and there she was.
The stuff on the bottom is sand...
20 fem bettas, 20000 black morpho tetras, 5 asian arowana, 6 pearl stingrays, 1 electric eel, 1 red tail cat, and a single alligator gar. Maybe even a tasmanian giant freshwater lobster. I would love that.
There are some cases where people manage to have communities with puffers, like Aquarium Co-op, but he has a massive puffer with a bunch of fish that are tiny compared to him.
I don't remember what kind of puffer Murphy is though