neon tetras live at standard tropical aquarium temperatures, but a good place to start is about 76 degrees Fahrenheit
Neon tetras need around 78F to 82F.
In the 20 to 80 area.
Yes,Neon tetras and catfish live together well.
Neon tetras live in fresh water, not salt. So they probably live in areas of the Amazon River.
no
Not normally.
in the tropicals they only live in warm water
No, neon tetras have very short tails.
Yes, tetras van live in schools normally with 3 to 5 other tetras
Neon Tetras do very well in soft and slightly acidic water. If there are a couple of Neon Tetras left, it may be best to quarantine them in a separate tank.
My neon tetras lived with a couple of algae eaters quite happily (I think. It was difficult to ask them).
No.
Yes, they are all tetras and should get along fine.
There are many specific requirements for the water when breeding neon tetras (Paracheirodon innesi). Some of those are 80+F temperature, still, shallow, around pH6, low KH., low GH and darkness.