Peyton
Aquarium Advice FINatic
Congo tetras get around 4-5". They are huge tetras. I've seen them in a 135g tank and they make the tank look smaller than that. I really don't recommend them for anything under 4ft and even then a 6ft would be best for a big school of them.
Yeah, I knew they were are larger tetra. Oh well. Maybe one day I'll have room for a tank big enough for them.
I'm really glad I got these neon rainbows today. I forgot how beautiful and lively they were. I just had a visitor come to the house and when they saw the rainbows in the tank they commented on how colorful they were.