whats the difference ?

[FOSELONE]

6100, 6101, 6200, 6201...very interested in buying a pair but dont know wich to go with...my tanks 7 feet long...30 inches wide...& 24 inches tall...dont know if ill be using the vortechs...

 

[rvitko]

6100 and 6200 are obsolete and were replaced by 6101 and 6201. What do you intend to keep?

 

[FOSELONE]

mainly sps...& fish of course

 

[rvitko]

I would get 2 6201 as they have the wider flow pattern better suited to your tanks width.

 

[FOSELONE]

ok...thanks roger...