On Sun, 2003-06-01 at 09:01, S. Hieber wrote: > If one works for 30, won't 3 work for 90? > Definitely yes. However, as you pointed out, that's three canisters, three diffusers, etc. I believe it would still be necessary to run two or three separate Hagen diffusers with a compressed CO2 system. It would make sense to locate one on each end of a 90-gal. > Compressed is better for any size tank Well ... I replaced the compressed system on my 6 gallon with the Hagen product. :-) -Dave VanderWall ------------------ To unsubscribe from this list, please send mail to majordomo@thekrib.com with "Unsubscribe aga-member" in the body of the message. Archives of this list can be found at http://lists.thekrib.com/aga-member/