tunze 6155 vs 7305??

[lsingh]

had talk to few people about these and they say it just about same not much difference....
even got an answer when 7305 was out they use to measure flow in a different way so its not much different than 6155...
i am setting up a brand new 72x36x24 system and need flow advise for a sps dominant reef..
thanks

 

[rvitko]

The 6155 is essentially the 6305 with a higher rpm, the motor was changed slightly. Two 6155 should be sufficient for this size tank. The 6255 is yet a stronger model that will be available in a couple months but given the dimensions, I don't think it is needed.