A lightweight, premium substrate featuring black pebbles, perfect for both freshwater and marine aquariums. Key Features: • Substrate with a grain size of 0.8mm, suitable for freshwater and marine environments as well as terrariums. • Protects delicate mucous membranes: the coarse, rounded natural sand is gentle on sensitive barbels, making it ideal for burrowing fish like rays, kuhli loaches, catfish, and more. • Safe for aquatic life: does not release any harmful pollutants into the water, making it great for fish, invertebrates, and plants. • Application: Layer the substrate over a nutrient base (approximately 6-8cm) to promote healthy plant growth. It also works well with undergravel heating cables.

A replacement set of blades designed for the Sera scraper XL and XXL glass cleaner, making it easy to swiftly and effectively eliminate algae and other contaminants from aquarium glass. The Sera scraper XL and XXL glass cleaner provides a quick and efficient solution for removing algae and various impurities from aquarium glass surfaces. This set includes three distinct, easily interchangeable tools: a stainless steel blade for glass, a plastic blade for acrylic surfaces, and a soft-layer sponge ideal for gentle cleaning of your aquarium's interior. Even stubborn algae can be effortlessly cleared away. The Sera cleaner scraper is offered in two sizes: XL: 30cm in length XXL: 60-90cm in length, featuring a short handle