Maxspect Gyre XF150
Maxspect
The first crossflow pump for home reefs, debuted at MACNA 2014: twin paddle rotors push a wide sheet of water across the whole tank, imitating the rolling gyre circulation of natural reefs.
Why it mattered
Propeller pumps move water outward in cones. The Gyre XF150 moved it sideways in a sheet, so the entire water column rolled over and returned along the bottom — one pump circulating the whole tank volume as a single loop.
Debuted at MACNA Denver on August 31, 2014 and on sale that November, the XF150 pushed roughly 5,000 gph (about 18,900 L/h) at around 50 W. Dead spots under rockwork — the perennial reef complaint — shrank because the return flow swept the sand bed.
Crossflow became a permanent category. Maxspect iterated the line, rivals answered with their own crossflow designs, and gyre-versus-propeller became a standard planning question for new builds.
Key specs
- Debuted MACNA Denver, Aug 31, 2014; on sale Nov 2014
- Crossflow (sheet) circulation rather than a propeller cone
- Up to ~5,000 gph (~18,900 L/h) at ~50 W
- Smaller XF130 followed for compact tanks
Keeper notes
- Keepers praise whole-tank turnover from a single low-profile unit mounted at the surface.
- The rotors and cages need regular cleaning; flow drops noticeably as they foul.
- Some keepers run gyres at both ends alternating direction to mimic tidal changeover.