The children's professional fish tank is made of highly transparent material and has a large capacity of 4500ml. It is equipped with an upgraded oxygenation system and continuously provides an oxygen rich environment for aquatic organisms through microbubble technology, improving the survival rate of fish in the tank and preventing them from falling and leaking. Equipped with three color lights, it is convenient to observe the living habits of fish at night. Equipped with fish farming knowledge cards and record manuals. Contains a 3.7V lithium battery with a capacity of 500mAh. It can be charged for 2 hours and used continuously for 5 hours. It can also be directly connected to a power source for use.