There's really nothing more any of us can say.
My bet is still in the same place. Ditch the plecos... Bristlenose are notorious Aholes and have stiff barbs all over their snout. They could easily do this damage in quick time while you are sleeping or at work. There's a reason why I don't own any plecos and dozens of other ray keepers do the same. Their size doesn't matter or rule them out as suspects. This isn't a sherlock holmes mystery or a game of "Clue"
This is going to end in a dead fish. I feel this is a really simple decision.
My bet is still in the same place. Ditch the plecos... Bristlenose are notorious Aholes and have stiff barbs all over their snout. They could easily do this damage in quick time while you are sleeping or at work. There's a reason why I don't own any plecos and dozens of other ray keepers do the same. Their size doesn't matter or rule them out as suspects. This isn't a sherlock holmes mystery or a game of "Clue"
This is going to end in a dead fish. I feel this is a really simple decision.