ADA Pollen Glass Large 30 CO2 Diffuser - Premium Aquarium Plant CO2 System for Lush Plant Growth in Fish Tanks & Aquatic Gardens

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This is the Pollen Glass with a wider diffusion filter, which is placed on the side panel of aquarium. Its unique J-shape glass pipe design sits elegantly inside the aquarium tank. 20Ø is designed for 60cm tank with fully grown sun plants, such as Riccia that requires much CO₂ and 30Ø diffuses CO₂ effectively for 75-90cm tank. Pollen Glass Large is made of glass including J-shape parts. Careful handling is required when attaching or detaching suction cup.