ArtistGardener
Aquarium Advice Freak
They should do just fine--and will add some sweet color. Good luck!
Penguin tetras are beautiful, but a 23 high is a bit on the small side for them. I think they need more space than neons, glowlights, lemons, pristellas and several of the others mentioned. To answer your earlier question about the similar species schooling together, yes and no. If there are small numbers of black neons, neons, and glowlights, they will group together at times. However, with a tank that small, all of these species will most likely be scattered throughout the tank most of the time. It takes a larger tank (40 breeder/55 and larger) to showcase schooling behavior--and then usually it's only when they are uncomfortable for some reason.
Yeah I wasn't really thinking of tank size when I responded. I was basically just responding to the title, 'favorite tetra and why' lol.
I even left out the why part wow!
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