ASCZOV Aquarium Filter Marine Fish Tank Water Purifier Biological Brick Freshwater Pond

Description: Large Cultivate Space: Internal imitate Ant nest structure, have more internal space and surface area. The available internal space is larger and the anaerobic area is larger, which is conducive to the growth and reproduction of nitrifying bacterias and can quickly cultivate bacterias. High Water Permeability: The water can directly penetrate the inside of the filter material instead of flowing around the filter material. And the aging bacterials membrane can be discharged in time, there is no residue, and it does not occupy the bacterias culture space. Rich in Trace Mineral: Can release high concentration of negative ions and electrolyze water. Contains trace parts that are very useful for fish, and can be slowly released and dissolved into water. Universal: Neutral filter material, use for a long time does not affect the water hardness. Suitable for freshwater and marine water.  Material: Using natural stone material of high temperature sintering, greatly improve the material strength, used for a long time. Stable performance, do not release any harmful substances. Filter Ability: Single block can deal with 80-120 litres of water, reduce maintenance and change water, creating a more scientific filtration system. Specification: Material: Stone Color: White Size(LxWxH): About 15x15x5cm/5.9x5.9x1.97inch Quantity: 2pcs/pack Package includes: 2pcs x Aquarium Filter Media Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.

Large Cultivate Space: Internal imitate Ant nest structure, have more internal space and surface area. The available internal space is larger and the anaerobic area is larger, which is conducive to thHigh Water Permeability: The water can directly penetrate the inside of the filter material instead of flowing around the filter material. And the aging bacterials membrane can be discharged in time,Rich in Trace Mineral: Can release high concentration of negative ions and electrolyze water. Contains trace parts that are very useful for fish, and can be slowly released and dissolved into water.Universal: Neutral filter material, use for a long time does not affect the water hardness. Suitable for freshwater and marine water.Material: Using natural stone material of high temperature sintering, greatly improve the material strength, used for a long time. Stable performance, do not release any harmful substances.