Guess fish name!

[Croissant]

I don't know where I post this, but guess the fish name from these things:

1. Little, fast submarines
2. Has a hole in mouth
3. Is small and red
4. Is slow
5. Are big, aggressive and teritorial

 

[corylover5]

1. corydoras!

 

[Croissant]

Yeah. That's right