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Old 07-12-2012, 09:04 PM   #1
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I have a fluval 306 canister. I've heard of people putting In liverock as filter media. What do I take out to replace it with?
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Old 07-13-2012, 10:15 AM   #2
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You remove the normal filter media, whether it's bio balls or ceramic rings/balls. Then put the rubble in its place. If you leave the sponge and filter floss in make sure you clean it often as it can build up with left over food and feces which decomposes and increases nitrates and phosphates.
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Old 07-13-2012, 10:50 AM   #3
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Can you do the same for a hob filter, I would just take out the blue media and then but some live rubble rocks in it?
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Old 07-13-2012, 12:29 PM   #4
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Yup you can
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Old 07-13-2012, 02:22 PM   #5
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It has three layers in trays, plus tall sponges. Ceramic media, more sponges, carbon bags all in trays.I took out the sponges in the tray and replaced w rubble. Haven't hooked up to tank yet. Should I keep the sponges in tray and ditch ceramic or keep the way it is?ceramic, rubble, carbon.
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Old 07-13-2012, 03:08 PM   #6
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I would ditch the carbon, but thats because i feel that BB are better than some carbon.
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Old 07-13-2012, 04:11 PM   #7
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So of the filter media I have, what should I keep and what should I replace w what?
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Old 07-13-2012, 04:24 PM   #8
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Replace the ceramic with rock ruble, you can remove carbon but it will help keep the nitrates down, even better is add some GFO in with the carbon. Keep the sponge in as it will catch debris just clean it out frequently. Is this going onto an established tank or are you cycling? If your cycling remove carbon till its done the cycle.
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Old 07-13-2012, 04:50 PM   #9
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Established. Always looking for a better way to keep it clean. Jawfish, purple dottyback, six line wrasse, russel's lionfish, brittle starfish, Condy anemone, turbo snail, about 10 hermits. Any care to comment on my bioload for a 55? The lionfish is about 4-5 in. Have a 90 but won't set it up til I move in the spring. I also have a few corals but nothing major.
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Old 07-13-2012, 05:32 PM   #10
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I think your stock is fine. Since its established leave the carbon in and add GFO which will help keep nitrates and phosphates in check.
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