Slate Spawning Condo Cave for Bristlenose Pleco3 Chamber Pleco Condo best suited for most bristlenose plecos. Made with all aquarium safe materials that do not affect water parameters. Due to the variation in the stone I work with, the condo you receive may have a different stone pattern The caves measure approximately 1. 75" wide by 1. 5" tall by 5. 5" deep, with a backing to create a dark spawning cave. Most bristlenose plecos prefer a cave that is slightly wider than the males pectoral fins, so