pitbull pleco

Hey everybody, OK so here is my 3rd and final thread on this subject. Questions about PITBULL/BRISTLENOSE pleco 1) can they live in a high ph (7.8-8.0) 2) can they live in hard to very hard water 3)can i put ONE pleco and leave it in there (long term) NOTE: i have alage wafers, alage, and...