Are flame and red-eye tetras aggressive?

[Lavender]

I’m looking at a 75 gallon filled with tetras, with fish susceptible to fin nipping (betta, possibly Bolivian ram- need more research on compatibility with the betta). Anyways, I want flame and red eye tetras, but I can’t tell if they’re aggressive or not. The flame tetras are said to be aggressive on other forums, but they’re also usually said to be like that in small tanks. The red eye tetras have also been described as fin nippers. Are they, or is that just in a small tank?

Edited July 8 by Lavender

[Peaceful Fish]

I’ve kept red eyed tetra in a community aquarium and never saw aggression to other species. They will chase each other around to establish a pecking order. I’ve never had a community fish fin nip a Bolivian Ram. They are surprisingly fast unlike a beta.