Aquarium Pump Size Calculator: Find the Right Pump for Your Tank

Calculate the appropriate pump size for your aquarium by entering your tank details below.

List of the Top 10 Best Aquarium Pump:

# Image Product Link
1 VIVOSUN 800GPH Submersible Pump(3000L/H, 24W), Ultra Quiet Water Fountain Pump with 10ft. High Lift with 6.5ft. Power Cord, 3 Nozzles for Fish Tank, Pond, Aquarium, Statuary, Hydroponics Green VIVOSUN 800GPH Submersible Pump(3000L/H, 24W), Ultra Quiet Water Fountain Pump with 10ft. High Lift with 6.5ft. Power Cord, 3 Nozzles for Fish Tank, Pond, Aquarium, Statuary, Hydroponics Green View on Amazon
2 GROWNEER 550GPH Submersible Pump 30W Ultra Quiet Fountain Water Pump, 2000L/H, with 7.2ft High Lift, 3 Nozzles for Aquarium, Fish Tank, Pond, Hydroponics, Statuary Black GROWNEER 550GPH Submersible Pump 30W Ultra Quiet Fountain Water Pump, 2000L/H, with 7.2ft High Lift, 3 Nozzles for Aquarium, Fish Tank, Pond, Hydroponics, Statuary Black View on Amazon
3 PULACO 95GPH 5W Mini Submersible Water Pump for Aquarium Fish Tank, Pond, Fountain, Hydroponics PULACO 95GPH 5W Mini Submersible Water Pump for Aquarium Fish Tank, Pond, Fountain, Hydroponics View on Amazon
4 PULACO 400GPH Submersible Water Pump with 5 ft Tubing, 25W durable fountain water pump for Pond Fountain, Aquariums Fish Tank, Statuary, Hydroponics PULACO 400GPH Submersible Water Pump with 5 ft Tubing, 25W durable fountain water pump for Pond Fountain, Aquariums Fish Tank, Statuary, Hydroponics View on Amazon
5 VIVOSUN 850GPH 60W Submersible Pump for Fish Tank, Pond, Aquarium, Hydroponic Systems with 5ft Power Cord and 4 Nozzles Blue VIVOSUN 850GPH 60W Submersible Pump for Fish Tank, Pond, Aquarium, Hydroponic Systems with 5ft Power Cord and 4 Nozzles Blue View on Amazon
6 HITOP Dual Outlet Aquarium Electric Air Pump, Whisper Adjustable Fish Tank Aerator, Quiet Oxygen Pump with Accessories for 20 to 100 Gallon (2 outlets) HITOP Dual Outlet Aquarium Electric Air Pump, Whisper Adjustable Fish Tank Aerator, Quiet Oxygen Pump with Accessories for 20 to 100 Gallon (2 outlets) View on Amazon
7 hygger 400 GPH Quick Water Change Aquarium Pump Submersible Fountain Water Pump Fish Tank Pond Drain Transfer Pump with 2 Adaptors hygger 400 GPH Quick Water Change Aquarium Pump Submersible Fountain Water Pump Fish Tank Pond Drain Transfer Pump with 2 Adaptors View on Amazon
8 VIVOSUN 2-pack 210GPH Submersible Pump(800L/H, 8W), Ultra Quiet Water Pump with 3.3ft High Lift, Fountain Pump with 5ft Power Cord, 2 Nozzles for Fish Tank, Pond, Aquarium, Statuary, Hydroponics VIVOSUN 2-pack 210GPH Submersible Pump(800L/H, 8W), Ultra Quiet Water Pump with 3.3ft High Lift, Fountain Pump with 5ft Power Cord, 2 Nozzles for Fish Tank, Pond, Aquarium, Statuary, Hydroponics View on Amazon
9 FREESEA Fountain Submersible Water Pump: 800GPH 45W Adjustable Ultra Quiet Aquarium Pump with 3 Nozzles 10ft High Lift for Small Pond | Fish tank | Waterfall | Outdoor | Hydroponics FREESEA Fountain Submersible Water Pump: 800GPH 45W Adjustable Ultra Quiet Aquarium Pump with 3 Nozzles 10ft High Lift for Small Pond | Fish tank | Waterfall | Outdoor | Hydroponics View on Amazon
10 Orlushy dc-12000 Controllable DC aquarium Pump 80W 3100GPH-marine wavemaker return pump with sine wave Controller for salt/Freshwater fish reef tank sump Circulation Orlushy dc-12000 Controllable DC aquarium Pump 80W 3100GPH-marine wavemaker return pump with sine wave Controller for salt/Freshwater fish reef tank sump Circulation View on Amazon

Understanding Aquarium Pump Sizing

Choosing the right pump size is crucial for maintaining proper water circulation and filtration in your aquarium. The pump size depends on various factors including tank size, desired flow rate, and head height.

How Does Pump Sizing Work?

Aquarium pump sizing follows several key principles:

  1. Flow Rate: The pump should circulate the entire tank volume at least 4-6 times per hour for freshwater, 6-10 times for saltwater, and 10-20 times for reef tanks.
  2. Head Height: The vertical distance the pump must push water affects its performance. Higher head heights reduce the effective flow rate.
  3. Tank Type: Different aquarium types (freshwater, saltwater, reef) have varying flow rate requirements due to the needs of the inhabitants.

Types of Aquarium Pumps

Type Description Best Use
Internal Pumps Submersible pumps placed inside the tank Small to medium tanks, sump systems
External Pumps Pumps placed outside the tank Large tanks, high flow rate needs
Submersible Pumps Versatile pumps that can be used inside or outside the tank Various tank sizes, flexible placement

Flow Rate Recommendations

Tank Type Recommended Flow Rate (GPH)
Freshwater 4-6 times tank volume per hour
Saltwater 6-10 times tank volume per hour
Reef 10-20 times tank volume per hour

Frequently Asked Questions About Aquarium Pumps

How do I calculate the required flow rate?

To calculate the required flow rate:

  • Determine your tank volume in gallons.
  • Multiply by the recommended turnover rate (4-6 for freshwater, 6-10 for saltwater, 10-20 for reef).
  • Adjust for head height and any additional resistance (e.g., pipes, filters).

What is head height and why is it important?

Head height refers to the vertical distance the pump must push water. It's important because:

  • Higher head height reduces pump efficiency.
  • Must be accounted for when selecting pump size.
  • Affects the actual flow rate delivered to the tank.

Can I use multiple pumps in my aquarium?

Using multiple pumps can be beneficial for:

  • Creating better water circulation and eliminating dead spots.
  • Providing redundancy in case of pump failure.
  • Allowing more precise flow control in different areas of the tank.

How often should I clean my aquarium pump?

Pump maintenance schedule:

  • Monthly: Inspect for debris and clean the intake.
  • Quarterly: Disassemble and clean the impeller and housing.
  • Annually: Replace worn parts like seals and impellers.

What happens if my pump is too small or too large?

  • Too Small:
    • Inadequate water circulation.
    • Poor filtration and oxygenation.
    • Increased risk of algae and debris buildup.
  • Too Large:
    • Excessive water flow stressing fish and plants.
    • Increased energy consumption.
    • Potential damage to tank inhabitants or equipment.

How do I choose between an internal and external pump?

Consider the following factors:

  • Internal Pumps:
    • Easier to install and maintain.
    • Ideal for smaller tanks or sump systems.
    • Take up space inside the tank.
  • External Pumps:
    • More powerful and efficient for larger tanks.
    • Do not take up space inside the tank.
    • Require more complex installation and maintenance.

What are the signs of a failing pump?

Watch for these warning signs:

  • Decreased flow rate or water movement.
  • Unusual noises or vibrations.
  • Overheating or excessive heat output.
  • Leaks or visible damage to the pump housing.

How do I reduce noise from my aquarium pump?

Tips for quieter operation:

  • Place the pump on a soft, vibration-absorbing surface.
  • Ensure all connections are secure and airtight.
  • Clean the pump regularly to prevent debris-related noise.
  • Consider using a noise-dampening enclosure for external pumps.

Can I use a pump for both freshwater and saltwater?

Most pumps are designed for either freshwater or saltwater use. Using the wrong type can lead to:

  • Corrosion in saltwater environments.
  • Reduced lifespan of the pump.
  • Potential contamination of the tank.
Always check the manufacturer's specifications before use.

What is the lifespan of an aquarium pump?

The lifespan of an aquarium pump depends on:

  • Quality of the pump.
  • Frequency of maintenance.
  • Operating conditions (e.g., saltwater vs. freshwater).
On average, a well-maintained pump can last 3-5 years.

How do I troubleshoot a pump that’s not working?

Follow these steps:

  • Check if the pump is plugged in and receiving power.
  • Inspect the impeller for debris or damage.
  • Ensure the intake and output are not blocked.
  • Verify the pump is properly primed (for external pumps).
  • Consult the manufacturer’s troubleshooting guide.