Recommend me some schooling fish

[Byron]

Emperors can be nippy, so not a good idea. What you want are the species in Hyphessobrycon. Not all of them, there are well over 200 in this genus, but several are disk-shaped and peaceful. There are several with a basic reddish/purplish background, like the Rosy Tetra (below). But research them carefully, some are real fin nippers. I include the Bleeding Heart, which was fine in my tank for many years, but others here have reported it can get nippy when confronted by an angelfish.

 

[Jacob the tank keeper]

Emperors can be nippy, so not a good idea. What you want are the species in Hyphessobrycon. Not all of them, there are well over 200 in this genus, but several are disk-shaped and peaceful. There are several with a basic reddish/purplish background, like the Rosy Tetra (below). But research them carefully, some are real fin nippers. I include the Bleeding Heart, which was fine in my tank for many years, but others here have reported it can get nippy when confronted by an angelfish.

I like those, they're the Rosy and the Bleeding hearts? Bleeding hearts are often clearer... Could it just be juvie colors?

Someone's selling gold gouramis, but they're quite aggressive, no? What about 3-spots? considering that gold is just a color morph of that I'll assume they're both aggressive.

 

[Essjay]

All the colour varieties of three spot are aggressive. Even females can be. We once had a member who had a female which had to be kept alone as she killed every other fish put in the same tank.

 

[Byron]

I agree. The species is Trichopodus trichopterus. There are many varieties like Blue, Gold, Marble, Three-Spot, Cosby, and probably others. They are incredibly rough.