Gannet Posted May 5, 2008 Report Share Posted May 5, 2008 hi all beenlooking at rodi and found a ultrafiltration system so asked the seller the difference and this is what i got Ultrafiltration which to put it as simple as i can, R.O can filter down to 0.0006 microns as ultrafiltration can be down to 0.001. smallest bacteria size known is 0.02 microns so what my question is will this do the same as an rodi for a reef tank? Quote Link to comment Share on other sites More sharing options...
reef Posted May 5, 2008 Report Share Posted May 5, 2008 It is the same thing, the ultrafiltration might have a one of the canisters that can take out smaller waste. Quote Link to comment Share on other sites More sharing options...
Gannet Posted May 5, 2008 Author Report Share Posted May 5, 2008 thanks for that, is one better than the other? Quote Link to comment Share on other sites More sharing options...
reef Posted May 5, 2008 Report Share Posted May 5, 2008 Only way to find out is to see all the items that make up the RO filter so we can compare. Anyway , either will be ok. Quote Link to comment Share on other sites More sharing options...
Ira Posted May 5, 2008 Report Share Posted May 5, 2008 hi all beenlooking at rodi and found a ultrafiltration system so asked the seller the difference and this is what i got so what my question is will this do the same as an rodi for a reef tank? It would be fine if the RO was there to filter out bacteria. Which it's not. It's there to filter out metals and other contaminants. A copper atom for example is 0.000145 microns(About 1/4 of the smallest size an RO can filter in your example) but luckily you rarely get free single atoms, they're usually in multiple atom molecules. If you had a bit of copper oxide in the water it would be in the range of double that plus the bond length gets you somewhere around .0006 microns. Quote Link to comment Share on other sites More sharing options...
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