flow for a 72 gallon

[Zarn]

which powerheads would you suggest for a 72gal long tank. I have soft corals. and maybe will add a few sps in the future.


2 tunze 6045's

or 1 Tunze 6000 with a controller.

 

[rvitko]

In general I don't like systems with one powerhead because you have no back up should it fail. I do think the 6000 is the better option but keep a spare on hand for emergencies, even if it is just a couple mj 1200's. The 6000 will use the same amount of power, occupy less space than 2 6045s and has more options, not to mention it is upgradeable to a 6100 if you move up to a bigger tank.