Difference in LENGTH: Nanostream vs. Stream

[apt220]

I just got a pair of 6105s. They look huge in my tank (upgraded from two MP40 Vortechs). I'm very happy with their performance, but I'm thinking I should have gone smaller (running them at %60 right now). What would be the difference in length of the pumps if I got 6055s instead?

Thanks

 

[rvitko]

The 6055 is a big step down, the flow is less than half at full power. The 6055 covers 4ft at 24V. For a 100 they could work but if you are keeping a lot of SPS or plan to upgrade tanks, the 6105 was the better choice. I would just change the voltage on the power supply to 18 or 12V with the included jumpers.