Aquarium Reusable Drawstring Activated Biospheres Review

【Package Details】There are 15 pieces aquarium filter media bags in white color with 150 micron mesh in diameter. The aquarium filter bags are durable and reusable, corrosion resistant and completely safe. It is suitable for both freshwater and saltwater tanks, and also works with any type of chemical filter media, preventing resins from escaping into your pump. 【Considerate Design】The aquarium filter bags are designed with a zipper closure at the opening. The plastic zippers are metal-free, so it won't pollute your water or hurt your fish. Suitable for respiratory biological rings, activated carbon, volcanic rocks, coral sands, ceramic rings, etc. Not applicable for finer particles. 【Various Filters Compatible】Filter bag is suitable for freshwater and saltwater including aquarium, swimming pool, power filters, tank filters, etc. Close tight to prevent loose media from potentially causing damage to your water pump or power filter's motor. 【Aquarium Filter Bags Size】6 x 7.8 inches (15x20cm) each bag. A suitable model for most aquarium fish tanks; You can fill the appropriate amount of filter material according to the actual situation. 【Improve Water Quality】The fine filter zipper mesh bag can provide your fish tank with a good water habitat, which plays an important role in purifying the water stains, and giving your pets a good living space.