Hey there im planing on getting a school of Tetras.
How many per gallon?
I was thinking of getting about 5 to 10?
And put them into a 10 or 15 gallon?
Is this a good idea.

Any information on them would be great

Here are my 3 black tetras from a long time
ago.

what tetras do you mean? theres thousands of type of tetra, from neons too pirahnas

Kev

Well i don't think im planing on getting neons.....
ummm Are pirahnas Tetras black Tetras?
Because i was thinking gettting some more Black Tetras.....
Are there any other types i would need to know about?

I have never heard of a black tetra. I have herd of black skirt, black neon, and black phamton tetra. For tetras you can just follow the one inch per gallon rule.

It depends on what size of tetra and how many you plan to get. Most tetras are 1-2 inches so getting a 10-15 gallon would be good.

Most tetras are schooling fish and like to live in schools of 6 or more.

Can they be kept with guppies or
is it best not to?