How about a household blower for increasing oxygen in a fish pond? Will it work to connect a long pipe?

depending on how big your pond is, you can use a vortex blower for ponds less than 5 mu, connect PVC pipes for ventilation, and then connect gas stones or aeration pipes (aeration discs) for aeration.

roots blower or outlet air cylinder can be used for outdoor ponds to connect PVC pipes, and then connected with aeration pipes (aeration disks) for pond aeration.

the length of the pipeline is determined according to the power of the blower, and it should not be too long. If it is too long, there will be no air behind the pipeline. The pipe diameter should also be appropriate, 32 caliber, 5 caliber, 63 caliber and 75 caliber should be determined according to the power.