return pump

[KJHLCH]

I currently have a mag 7 for my 20g h and it seems that it is too much. l had the pump from a previous 110, but on 20 h it is blowing sand everwhere. What would be a good pump to go with? All I plan to keep are couple of fish and a few shrooms.

 

[Travis L. Stevens]

You can always switch out the impeller for a Mag 5 and save yourself some cash. Also, multiple outlets really slows it down.