Aquarium Sand Bar Aeration Fish S Stone Oxygen Diffuser Bubble

The use of sand and stone material can make your aquarium fish outgas better. It can be used as a decorative object to add a landscape to your fish . This product can be clned and can be used reptedly after clning. Condition:100 Brand New Item Type: Aquarium Sand Bar Material: PVC, Sandstone Optional Size: Small Size, Large Size Small Size Length: Approx. 11.7cm/4.6in Large Size Length: Approx.  21.7cm/8.5in Instructions for Use: 1: Plse soak this product in water for 15 minutes before use 2: -term use, if dirt clogged, bubbles reduced, it can be taken out and washed reptedly 3: It can be used with 2W and pumps (the larger the wattage of the pump, the better the output!) Product Function: Used in conjunction with pump and tube pump, more bubbles