Slate Tiered Hiding Condo Cave4 tier Pleco Hiding Condo suited for most plecos, especially growing babies. 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 top 3 tiers measure approximately 0. 5" tall, top two without a backing, the bottom has a back to make a cramped dark hide for shy fish. The bottommost tier measures approximately 0. 75" tall and