Sell 500g / bag Aquarium Sandstone Filter Material House Nitrifying Bacteria Fish Tank Supplies best price

500g / bag aquarium sandstone filter material house nitrifying bacteria fish tank supplies IProject description conditions: 100% brand new, family photo filter material, 1 bag of 500g (net bag) High quality color: as shown in the picture Material: ceramic ring, science and technology ring, bacterial ring, biological bead, bacterial ball, vitality ring, volcanic stone, coral stone, ammonia absorbing stone, Maifan stone, activated carbon, biochemical ball, more than 12 kinds of raw materials Szie: the size of each product is different (about 1-2cm) instructions: 1. Before using the filter material, please wash the dust on the surface repeatedly with clean water The material is fired at high temperature, and some strong alkali remains. Please soak in clean water before use In three days or so, so as not to burn your pet. 2. Put the filter material behind the filter cotton and start the filter pump; 3. This product is suitable for seawater and fresh water aquarium and Jinli fish pond filtration. be careful: 1. This product is used for aquarium culture and filtration, and is not edible; 2. Please store the product in a safe place to prevent children from eating it by mistake; 3. In case of small damage to individual filter materials during transportation, the use of this product will not be affected. 4. The black charcoal bag inside the net bag (for adsorption and purification), depending on the situation. 5. Please allow 1-3mm manual error measurement. Please make sure you don't mind before you bid- The color may vary from display to display, please understand- Product damage is a normal phenomenon, does not affect the normal use!