This collection of natural slate rocks is perfect for aquarium landscaping and decor. Ranging in size from 3 to 8 inches, these irregularly shaped pieces of slate will add visual interest and texture to any freshwater or saltwater tank. The slate's natural appearance blends seamlessly into aquatic environments while also providing hiding spots for shrimp, snails and fish. Ideal for crafting intricate landscapes, the rocks can be stacked in terraced formations or laid out in sweeping curves. Their porous texture encourages the growth of algae and biofilms, contributing beneficial bacteria to the nitrogen cycle. Slate is also durable enough for boisterous fish and will not alter water chemistry like some decorative stones. An eco-friendly way to scenescape an aquarium, reptile or fairy garden tank.