Seio P530 Prop Pump with Magnet Mount - 530 GPH

Excellent pump, good flow. I got these on sale for $20 each a few months ago. Very quiet, can not tell they are on by the noise only the flow tells the tale. Only complaint is that the venturi air port does not flow if the pumps are further than a few inches submerged. Annoying if you are trying to use them for said feature as it limits placement.

This is a great little water mover! I was able to mount and adjust it quickly.

Muy buena para oxigenar el agua en tiempos de calor .

Venturi doe NOT work if unit is 1" below waterline, as previous reviewer stated. At the waterline it intermittently spurts air bubbles which becomes quite annoying. Probably to the fish as well.Otherwise it's a powerful, quiet unit.The venturi access port is useless for introducing o2 into the water column.

I've had two of these pumps running in my 50gal. marine aquarium for three years without fail. Will buy them again when needed.