Aquarium Underwater Pump 5w 300 ltr/hr

An aquarium underwater pump (also called a submersible pump) is placed completely inside your fish tank or sump to circulate water, power filters, or create current.

Key Selection Factors

Flow Rate: Choose a pump that handles 4 to 10 times your total tank volume per hour.

Head Height: This is how high the pump can push water vertically up a tube. Make sure to measure if you are using an under-tank sump.

Shaft Material: Look for ceramic shafts if you run a marine/saltwater tank, as metal parts rust quickly in saltwater.

Safety: Ensure the model features thermal overload protection so it shuts off automatically if it runs dry.