Compact, high-pressure pump for fluidized sand filter?

[pooootiqe]

Hey all,

Got a HOB fluidized sand filter to play with ... till I found out that none of my spare pumps (Syncra nano, Maxjet 400) can move the sand! Can someone recommend a high head-pressure pump with a small footprint to fit in an AIO back chamber? (vertical space is fine).

The manual says: "The QSA-mini will need a single powerhead such as the Hagen 201, Aquarium Systems MJ-250, Mini-Jet 404 or Micro-Jet MC 450"; none of these seems to be in production anymore...

 

[shcrimps]

following along, have only heard of super large systems and aquariums doing stuff like this
definitely curious to see how it would be on a smaller hobby level