How MDM Pumps Helped Power a 15,000-Gallon Filtration Upgrade with Predatory Fins
When you’re running a 15,000-gallon tank full of massive freshwater fish — arapaima, redtail catfish, stingrays — good filtration isn’t optional. It’s what keeps the water clean, the fish healthy, and the system running smoothly day after day. That’s exactly what the team at Predatory Fins was up against. Their main display tank needed a serious filtration overhaul, and they wanted equipment that could handle high flow, heavy load, and constant operation. They chose MDM’s Sequence Titan and Sequence Power 4000 pumps to get the job done. The Sequence Titan is built for large systems that need serious power under pressure. It can move over 8,000 gallons per hour, giving strong, consistent flow through long plumbing runs and multiple filter stages. The Power 4000 is designed to keep things efficient and steady — perfect for biofiltration loops and water returns.
Together, these pumps drive the entire new setup — pushing water through drum filters, bio chambers, and mechanical stages — keeping everything moving, oxygenated, and crystal clear. Since the upgrade, the difference has been clear to see (literally). Water quality is up, maintenance time is down, and the big fish are thriving.
For large-scale aquariums or anyone who needs reliable, long-term flow, the Sequence line offers the right mix of performance, quiet operation, and U.S.-made durability. Predatory Fins’ new system proves it: the right pump can completely change how a tank runs.
