02-15-2008, 09:47 PM
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You do not *need* a sump on a SW tank, espically on that size. Yes, it helps a ton, but you can do without if you want to have some more maintnence.
Is this tank glass? I am trying to convert a 5G FW into a Pico/Nano reef. The thing I am worried about is the Acrylic. It will scratch very easily, so I may just go to the LFS and buy an AGA 5-10 Gallon tank with no cover.
You will need a powerhead. 2 would be better in that tank. A PS is not needed. I personally don't like it. If you are willing to do weekly WC's, you don't need one. It takes away some important nutrients in the water that some corals eat, but it keeps the water clear. A PS is all in your decision.
Even a Filter isn't needed, but it sure does help. As long as you do constant WC's, a good flow from powerheads, a CUC, and maybe a CUC, you will be fine. I suggest getting some sort of HOB filter.