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#1
04-04-2006, 02:34 AM
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IME none at all except to collect additional nitrates. I used to have sponges in both sumps and once again they tend to be places that nitrates just love to collect and grow. Bio balls can be tricky. I have heard a few people recommend them for FOWLR systems but as I don't have one of those I am not really sure of the benefit of them. Regardless I believe that the best biological filtration is going to come from having lots of live rock - period. I do have miracle mud in my fuge on my 230g but to be honest I am not sure of the benefit of it (other than that claimed by the manufacturer). My other fuge is just live rock and chaeto.
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#2
04-06-2006, 11:12 PM
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Personally I would go with an above tank fuge with a skimmer. It worked for my 90 gal, grouper, trigger, snapper tank. Plus the little copopods that grew in there, fell down into the main tank to feed the damsels, which I would throw in for "sport" for my aggressive fish. The only downside is you'll have to build a tall stand to hide the fuge and skimmer.
Vic
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#3
04-07-2006, 02:22 AM
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sump, sump ,sump it it is way more convienient and expandable later. drill now you can always not use them but i garranty you will never go back.
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If it was easy it wouldn't be any fun.
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