AIR STONE IN FISH TANK Oxygen stone for aquarium AIR STONE DISK Fish tank with bubble diffuser AIR BUBBLE STONE FISH TANK AIR STONE Three different sizes meet the oxygen requirements of fish in tanks of different sizes. If the product is used for the first time and in some places you can not see the air. The bubble plate made at high temperature is durable and reusable. Aeration stone is designed for freshwater, marine, hydroponic or aquarium aquariums. Prolong the life of the medium, help maintain fish health and promote plant growth. PACKAGING LIST 1 x Oxygen Stones OXYGEN STONE AQUARIUM Description This creative bubble stone is made of material for durable and long-lasting use. Designed to add oxygen and circulate nutrition in a hydroponic cultivation system or aquarium. Suitable for hydroponic systems joints aquariums Aquarium and other systems. AIR STONE DISK Color: Black Material: sand and gravel Three different sizes meet the oxygen requirements of fish in tanks of different sizes. If the product is used for the first time and in some places you can not see the air. The bubble plate made at high temperature is durable and reusable. Aeration stone is designed for freshwater, marine, hydroponic or aquarium aquariums. Prolong the life of the medium, help maintain fish health and promote plant growth.