Fluval SP4 vs MSX FX1500 ASKOLL return pump

[msayani2]

So I am preparing to build a 150gal mixed reef with a 30gal sump and need advice on which return pump to use:

1. Hagen/Fluval SP4
2. MSX FX1500 (Laguna/askoll block with custom volute)

Any suggestions or experience with either? I need to make the decision soon.:uhoh3:

Thanks.

[msayani2]

Bump.

[sirreal63]

I would go with the SP4, you don't really need a custom volute and the parts availability and warranty from Hagen makes it an easy choice.

[xtra-salty]

I have an SP4 on my 150, its throttled back quite a bit. The directions tell you to use flexible hose to dampen the vibration, I used a short piece of spaflex on the intake so its kinda rigid and mine vibrates some.

[ksed]

SP4
It has ceramic shaft and bearing. Laguna pond pump don't have that.

[gcarroll]

sp4
it has ceramic shaft and bearing. Laguna pond pump don't have that.+1

[atreis]

Of the two: SP4

Both are too big. For 150g you only need 450 gph to a max of 750gph. Both of those pumps are rated MUCH higher if you've the usual ~4 foot head and you'll likely end up throttling them.