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Unread 05/06/2009, 11:41 AM   #1
Salt Convert
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Question What should I replace bioballs with?

I have a 29 gal biocube that's been running for about 3 months without the bioballs, but with nothing to replace them in the bioball cavity. What, if anything, should I put back there? Thanks!


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Unread 05/06/2009, 11:44 AM   #2
der_wille_zur_macht
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I'm not familiar with that model aquarium, how much space do you have to work with? Is it well lit?


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Unread 05/06/2009, 11:53 AM   #3
Entropy
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You could always go with rubble (little pieces of live rock). IMO there is nothing wrong with leaving the chamber empty either.


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Unread 05/06/2009, 12:26 PM   #4
Whys
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Bionicballs.


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Unread 05/06/2009, 12:31 PM   #5
reeftivo
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The small pieces of live rock (rubble) will help increase your biological filtration and as noted above, if your rear chamber is big enough and has good flow you may be able to convert it into a refugium where you can harvest good algae and copepods/amphi's. This will literally clean your tank of unwanted nutrients/nitrogenous compounds and also can help feed your tank. If you don't opt for either then as stated by Entropy, you can leave it empty which gives you room for other options (i.e. pumps etc.) later down the road. You may also want to use the chamber for media such as GFO (granular ferric oxide) or carbon.
The GFO will remove phosphates and silicates which are algaes best friend. Carbon will help clarify your tank but will also remove some beneficial nutrients as well so you may want to use carbon periodically. If carbon is used 24/7 then you may want to use a good supplement once or twice a week depending on your bio load.

Hope that helps.


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Unread 05/06/2009, 01:04 PM   #6
aquamanSD
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I'd have to say if you use anything at all to put some live rock rubble in too...


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Unread 05/06/2009, 01:25 PM   #7
Aquarist007
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Quote:
Originally posted by reeftivo
The small pieces of live rock (rubble) will help increase your biological filtration and as noted above, if your rear chamber is big enough and has good flow you may be able to convert it into a refugium where you can harvest good algae and copepods/amphi's. This will literally clean your tank of unwanted nutrients/nitrogenous compounds and also can help feed your tank. If you don't opt for either then as stated by Entropy, you can leave it empty which gives you room for other options (i.e. pumps etc.) later down the road. You may also want to use the chamber for media such as GFO (granular ferric oxide) or carbon.
The GFO will remove phosphates and silicates which are algaes best friend. Carbon will help clarify your tank but will also remove some beneficial nutrients as well so you may want to use carbon periodically. If carbon is used 24/7 then you may want to use a good supplement once or twice a week depending on your bio load.

Hope that helps.
+1 I would run carbon in a bag in that filter. GFO needs some space above it to slightly heave so it is more effeciently run in a reactor such as Two Little Fishes phosban reactor.


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Unread 05/06/2009, 01:47 PM   #8
romsoccer12
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i also have the 29gal biocube i took the bioballs out and put a 65watt full spectrum bulb over where the bioballs should be and put some liverock and sand with some algae and a small cuc. It does a better job than the bioballs and helps the flow so the water doesnt go over the overflow thing into the back


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Unread 05/06/2009, 02:54 PM   #9
joemck
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Had a 34 RSM and I put ruble and charcoal in mine in place of the BB.


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