TUNZE® ORCA Oscillating Wave Pumps Advanced Reef Aquarium Flow with Natural, Dynamic Movement

Creating realistic water movement is one of the most important—and often overlooked—factors in maintaining a healthy reef aquarium. Corals, fish, and invertebrates rely on constantly changing currents to deliver oxygen, nutrients, and food while carrying waste away. The TUNZE® ORCA oscillating flow system was designed to replicate this natural ocean motion more accurately than traditional stationary wavemakers.

Designed and manufactured with precision German engineering, TUNZE ORCA wavemakers deliver realistic, programmable, and reef-safe flow patterns ideal for SPS, LPS, and mixed reef aquariums.

What Is the TUNZE ORCA System?

The TUNZE ORCA is an oscillating aquarium circulation system that physically changes the direction of flow by rotating a compatible TUNZE Turbelle® pump. Instead of relying only on pulse modes or random speed changes, ORCA creates true directional movement, closely simulating tidal surge and reef crest conditions.

This technology helps eliminate dead spots, improves coral health, and creates more natural fish behavior in both small and large reef tanks.

How ORCA Creates Natural Reef Flow

At the core of every ORCA setup is a precision oscillating drive unit mounted securely to the aquarium glass using a powerful magnetic holder. The system gently sweeps the pump back and forth, creating multi-directional water movement throughout the aquarium.

Key Benefits of ORCA Flow Technology

• Oscillating directional current, not static flow

• Improved oxygenation and nutrient delivery

• Reduced detritus buildup behind rockwork

• Enhanced coral polyp extension and growth

• More natural reef-like circulation patterns

This makes ORCA especially effective for high-flow SPS systems and aquariums with complex aquascaping.

ORCA MK2 Control and App Integration

The latest ORCA MK2 platform features enhanced electronics and app-based control through the TUNZE Reef Assistant App. This allows reef keepers to customize movement angles, oscillation timing, and overall flow behavior directly from a mobile device.

ORCA offers advanced wavemaker control without complicated programming, making it accessible for both experienced reef keepers and serious hobbyists upgrading their flow systems.

Available TUNZE ORCA Models and Pricing

TUNZE ORCA systems are available in three pump sizes, each offered in black and white versions to match modern aquarium aesthetics.

ORCA 6075 Oscillating Wave Pump

Ideal for small to medium reef aquariums

• ORCA 6075 Black – Approx. $629.99

• ORCA 6075 White – Approx. $629.99

Flow Range: up to ~2,500 GPH
Recommended for nano reefs and smaller mixed reef systems.

ORCA MK2 Mount Only Oscillating Wave Pump

Perfect for medium to large reef aquariums

• ORCA MK2 White & Black $449.99

For existing customers. 

ORCA 6105 Oscillating Wave Pump

High-performance solution for large reef tanks

• ORCA 6105 Black – Approx. $599.99

• ORCA 6105 White – Approx. $599.99

Flow Range: up to ~4,500 GPH
Designed for large reef systems requiring strong, dynamic water movement.

Pricing Note: Prices are typical retail estimates and are subject to change based on availability and manufacturer updates.

Why Oscillating Flow Is Better for Coral Health

Natural coral reefs experience constantly shifting currents driven by tides and wave action. Replicating this motion inside an aquarium provides measurable benefits:

• Prevents coral tissue damage from constant directional flow

• Encourages symmetrical coral growth

• Improves waste export and nutrient transport

• Enhances overall reef stability

Oscillating wavemakers like TUNZE ORCA create a more biologically accurate reef environment than traditional powerheads.

Built for Long-Term Reliability

TUNZE is known worldwide for quality and durability. ORCA systems are built using marine-grade materials, sealed electronics, and smooth-drive motors designed for continuous saltwater operation.

• Quiet, vibration-free performance

• Corrosion-resistant construction

• Long service life

• Industry-leading warranty support

Aquarium Specialty – Trusted TUNZE Distributor for Over 20 Years

Aquarium Specialty has been a proud distributor of TUNZE products for more than 20 years, providing reef keepers with trusted equipment, expert support, and long-term product knowledge. This long-standing partnership ensures customers receive authentic TUNZE products, reliable availability, and knowledgeable guidance when selecting the right ORCA system for their aquarium.

Final Thoughts

The TUNZE ORCA oscillating wave pump systems combine intelligent design, advanced control, and proven Turbelle® performance to deliver true reef-style water movement. With multiple sizes, color options, and app-based control, ORCA offers a premium solution for reef aquariums of all sizes.

For aquarists looking to replicate natural ocean currents and support long-term coral health, TUNZE ORCA is one of the most advanced flow solutions available today.