Vampire Plec

[matt1713]

What is there ph, are they nocternal, are they aggresive, how big do they get,tank size,Etc.

 

[stang1]

There are two types of Vampire Pleco so you need to determine which one it is to give you a better idea.
Have a look at these links for more info on both types:

Vampire Pleco (L007)

Vampire Pleco (L029)