Are you still worrying about uneven oxygenation?
The ordinary gas disc is rough, the bubbles are not uniformly dispersed, and the oxygen melting effect is poor

A variety of models allow you to choose the right gas plate
Aquarium aeration semicircular sand table
High temperature sintering, uniform gas outflow, large gas volume, strong and durable

The gas cake is unpackaged, and the breadstone comes in a box...
The bubble stone can only be connected to the oxygen pump, and any machine placed in the water cannot be connected and cannot be used! ! !
 

Material: Emery

Package Content：

1*bubble tray