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Simplicity 540DC In-Sump Protein Skimmer

Simplicity 540DC In-Sump Protein Skimmer

The Simplicity DC Protein Skimmer line packs performance, value, and control in a compact footprint. The hybrid cone design features three control points, a controllable pump, and a needle wheel impeller. Available in five different sizes to suit aquariums between 50 and 500+ gallons and covered by a 3-year prorated limited warranty, and unlimited lifetime, US-based support.

  • Exceptional Waste Removal
  • Custom Control
  • Easy-to-perform Maintenance
  • Low Power Consumption
  • Unbeatable Value

Exceptional Waste Removal

Pulls in more air than expensive competitors producing a dense waste-removing foam. The hybrid cone body helps concentrate the foam as it rises and improves contact time.

Custom Control

Perfectly dial in the skimmer with three points of control. Independently adjust the water level, the air intake, and the flow rate of the pump and achieve the best performance for your unique system.

Controllable Pump

Increase or decrease the water flow rate with the touch of a button. This feature is helpful when adding medications or foods to the tank that can cause the skimmer to overflow. The built-in feed mode allows the pump to be turned off temporarily with the touch of a button.

Compact, Hybrid Cone Design

The hybrid cone design stabilizes the foam column and concentrates it as it rises, maximizing waste removal.

Needle Wheel Impeller

A durable needle wheel impeller is the powerhouse of the pump creating tons of microbubbles that capture detritus and push it into the collection cup.

Easy-to-perform Maintenance

The thumbscrew assembly makes taking the skimmer apart simple, and the bayonet locking collection cup is simple to remove and clean. Includes a built-in collection cup drain for those away from their tank for an extended time.

Low Power Consumption

The DC pump is energy efficient and safer than a similar sized AC pump.

Unbeatable Value

Other skimmers with similar features sell for more than double the price. 


  • Dimensions: 9.9 in. x 11.0 in. x 22.0 in. (L x W x H)
  • Weight: 11.9 lbs
  • Power Consumption: 16-47W
  • Power Type: 24V DC
  • Power Cord Length: 10 ft
  • Warranty: 3-year manufacturer prorated warranty

Skimmer Specifications

  • Light Bioload: up to 540 Gallons
  • Medium Bioload: up to 405 Gallons
  • Heavy Bioload: up to 270 Gallons
  • Recommended Water Height: 8-10 in.
  • Footprint: 9.9 in. x 11.0 in.
  • Height: 22 in.
  • Body Shape: Hybrid Cone
  • Body Diameter: 7.9 in.
  • Neck Size: 4.0 in.
  • Collection Cup Capacity: 8 Cups
  • Collection Cup Style: Bayonet Twist Lock
  • Collection Cup Drain: Included
  • Tuning: Adjust the airflow, bubble size, and the flow rate of water through the skimmer

Pump Specifications

  • Air Intake: up to 1800 liters/hour (476 gallons/hour)
  • Flow Rate: up to 1490 liters/hour (394 gallons/hour)
  • Impeller Type: Needle Wheel
  • Control: Adjustable flow rate
  • Additional Features: Feed mode

What's Included (i.e., what’s in the box)

  1. Simplicity 540DC Protein Skimmer
  2. Simplicity 540DC Skimmer Pump
  3. Quick Start Guide
Regular price $529.95
Regular price Sale price $529.95
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