Filtration - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 15 Old 07-21-2012, 02:36 PM Thread Starter
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Filtration

Hello again, sorry for all the recent questions but as you can tell I am a beginner and I am trying to cut out any mistakes I could make before I make them!
So onto my question, in a filter there is obviously filter media but in a marine tank should I run the filter with or with out the media as I have been told that I could take the biological filtration media out of the filter and use live rock as the biological filtration?
After being given this information my thought was to take out the biological filtration and just leave something in there to take out the debris would this work?
Thank you for your help and patience with me:)
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post #2 of 15 Old 07-21-2012, 02:46 PM
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Many people use HOB filters only for water movement and even this is not very good.

The HOB filters in marine overtime become Nitrate factories which are bad for your tank. If anything you can run carbon only in them.

Fully cured Live rock is your primary source of filtration in a marine tank, you dont have to use all live rock, dead rock with some live rock is all that is required. 1 1/2-2 LBS per gallon of live rock if you go all live rock. A few pieces if you are using dead rock as well.

10g Fry / Hospital / QT tank (as needed)

75g Saltwater Reef, Ocellaris Clownfish, Lyretail Antias (baby), Lemon damsel, Longtail Fairy Wrasse, purple dottyback, snails, crabs and a few LPS corals.

220g Still sitting empty (come on Lottery I need the numbers to come up!)
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post #3 of 15 Old 07-21-2012, 02:54 PM Thread Starter
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The tank that I'm hoping to get comes with a HOB filter so i may aswell put it to good use:') would I be able to switch the filter media with live rock rubble? Would that work? Also how does live rock work as filtration:') thanks!
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post #4 of 15 Old 07-21-2012, 02:58 PM
Problem is, even LR rubble will collect debre in it, and also over time, create a problem. If you insist on using it, how about using Carbon, as suggest above, from time to time, or putting GFO or ChemiPure Elite in it? Those things will help your system, rather than become problems. Really, we would not steer you in the wrong direction, you really don't need a filter in a SW system, just water flow.
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post #5 of 15 Old 07-21-2012, 03:03 PM Thread Starter
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So as long as I have flow and plenty of live rock it will be okay? I am going to get a circulation pump so I should have enough flow:')
Another question when I will be mixing the water if I take everything out of the filter will this aid with mixing the salt in as I had heard that I need to pre mix it and to keep circulation?
Thanks!
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post #6 of 15 Old 07-21-2012, 04:11 PM
Not entirely, but to a degree, yes. I've forgotten what size tank we were talking about, but in tanks over 30g, a skimmer is needed to keep the nutrients in check, and to remove them before they become issues. But, if you tank is under 30g, you'll just need to do water changes of 10-15% once a week to keep those nutrients in check.
As far as mixing salt. You should do this in a seperate container 24hrs before your going to use it. I would not rely on nor use that filter for stirring the salt mix up. Filters are not used as part of the flow equation, as they are inconsistant, and mostly just ruffle the surface. Flow in a FOWLR would be 10x your water volume, and in a Reef tank it would be 20x and up.
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post #7 of 15 Old 07-21-2012, 04:18 PM Thread Starter
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I am doing about a 10 gal tank! So should I just leave the filter out all together? Thank you for all your help so far:)
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post #8 of 15 Old 07-21-2012, 05:56 PM
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Originally Posted by tommaso889 View Post
I am doing about a 10 gal tank! So should I just leave the filter out all together? Thank you for all your help so far:)
Yup, theres no need for it in that small of a tank. But, as stated, you could always run Carbon in it from time to time, or GFO.
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post #9 of 15 Old 07-22-2012, 05:19 AM Thread Starter
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Okay but what is GFO? Thanks!
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post #10 of 15 Old 07-22-2012, 07:01 AM
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Quote:
Originally Posted by tommaso889 View Post
I am doing about a 10 gal tank! So should I just leave the filter out all together? Thank you for all your help so far:)
I would personally take a different approach, because the tank is so small. I would use the filter running activated carbon full time. I would buy carbon in bulk and use filter sleeves which I can pack full with carbon.

Carbon has some of the benefits of a protein skimmer, so you may as well obtain these benefits. Carbon absorbs organic waste, where a skimmer removes organic waste. The issue with carbon is that the fishkeeper must be very disciplined and clean rinse the carbon & filter under tap water every week. Allowing detritus to accumulate or bacteria to grow on the carbon & filter media results in the negative aspects of filtration which you are attempting to avoid.
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