Precision Under Pressure: The Colossus DC Plus in Action with Predatory Fins

At MDM Pumps, we don’t just build pumps—we engineer performance. And when seasoned aquarists like Predatory Fins rely on our systems to drive clarity, flow, and filtration, we take notice.

In a recent installation, the Sequence® 750 Colossus DC Plus tackled a persistent filtration challenge that had been growing for months: weakened backwashing, cloudy water, and insufficient recirculation. The results? A complete system turnaround—and a reminder of why Colossus is setting a new standard in DC pumping technology.

Watch the Video Below:

[EMBED] https://www.youtube.com/shorts/nWCmz4M0Rp0

Real-World Reliability for Demanding Systems

Predatory Fins came to us with a common problem: their aging pump had lost performance, and their bead filter wasn’t being properly backwashed. As organic load built up, so did frustration—and turbidity.

That changed the moment Colossus came online.

“I’ve always liked this brand. MDM is a really good company—US-based, quiet pumps that are powerful and efficient. I’ve had zero seal failures with their pumps.”

We designed the Colossus for this exact scenario. With the adaptability of DC speed control, it delivers a powerful, immediate response when aggressive cleaning is needed, then effortlessly dials back to an energy-saving cruising speed.

Smart Power Where It Counts

What makes the Colossus DC Plus different isn’t just the raw flow—though it delivers up to 128 GPM, it’s what you can do with it.

Precision Variable Speed: Tailor RPMs in real-time using a simplified user-friendly controller.
Advanced Motor Intelligence: Regulates voltage, RPMs, and torque dynamically.
Backwash On Demand: Boost power for critical filtration cycles—then reduce speed to save energy during normal recirculation / filtration modes.
Quiet Confidence: Operates silently, even when running at 100% capacity.

“I turned it up, and immediately the water started flowing. This fixes the problem I always had—insufficient power to stir the beads and clean the filter. Now I can power up for backwashing, and dial it down after. That’s a game-changer.”

This is flow on your terms, engineered for those who demand control.

Results in Real Time

Within hours of installation, the system had recovered. Beads were fully agitated during backwash. Contaminants were cleared. The water—previously clouded with buildup—had returned to clarity.

“It’s 12 a.m., I just got back into the shop—and look how much clearer the water already is.”

That’s the Colossus effect. Not someday. Today.

Built with Purpose. Backed by Performance.

As an American manufacturer, MDM builds every pump to exceed expectations. Our seals don’t fail. Our motors don’t fatigue. And our innovations don’t compromise.

The Sequence® 750 Colossus DC Plus is engineered for aquaculture professionals, koi pond specialists, marine system integrators, and serious hobbyists who need more than flow—they need command.