Sucker Fish and Black Angelfish Compatibility
No, a Sucker Fish (Pleco) cannot survive in the same tank as a Black Angelfish.
Angelfish prefer soft, acidic water from the Amazon basin, while Plecos prefer hard, alkaline water. These differing requirements make it difficult to keep both healthy together.
Additionally, Angelfish can be aggressive toward Plecos, and Plecos may attach to Angelfish, causing damage and stress. It is not recommended to keep these two species together.