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Old 02-14-2012, 09:10 PM   #1
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Can I run my tank w/out a filter

I've noticed that the hoses from my canister filter are kinked right where they attach to the filter itself. Basically, the shelf underneath my tank is too short and the water flow must be rather diminished. Now, after doing some reading, I'm wondering if I could just remove the filter without any issues. I have a 28 g tank w/ 30 lbs live rock and 20 lbs of aragonite. An in-tank protein skimmer (which works fabulously!), three fish, some shrimp, crabs and snails, and, of course, corals (softies mostly). All levels are 0, except for nitrates which are at 5. I do 7 g. water changes every week.

My biggest worry is that I remove the filter and get an ammonia spike that would kill my fish and corals.

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Old 02-14-2012, 09:44 PM   #2
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I wouldnt try it, it could get messy try a hob filter for a tank that size there pretty cheap
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Old 02-14-2012, 10:06 PM   #3
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Of course you can. All the advice that we get over this side of the the pond is NO FILTERS on SW tanks. Your live rock and skimmer are your filters. I run a hang on back without any filtration media, I just use it for my GAC and phosphate remover.

Google 'Berlin method'
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Old 02-14-2012, 10:15 PM   #4
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What is GAC?
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Old 02-14-2012, 10:37 PM   #5
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Activated carbon.
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Old 02-14-2012, 10:54 PM   #6
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Ooooh, the G threw me off . I looked it up and I guess it makes sense, so I'll get a HOB filter tomorrow for those two things. Do I need to get one rated for a bigger tank?
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Old 02-14-2012, 11:02 PM   #7
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You need some sort Of filtration. One rated for a Bigger tank will to hurt.
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Old 02-14-2012, 11:08 PM   #8
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Quote:
Originally Posted by EriksFish315
You need some sort Of filtration. One rated for a Bigger tank will to hurt.
The live rock is the filtration. A box with some floss may cut it in fresh, but in salt where water quality is everything, that will just harbour junk until it rots. It's why I run BB, manual removal of detritus once a week and no sand or filters storing up nutrients.
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Old 02-14-2012, 11:09 PM   #9
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Well, I have biological filtration from the rocks and sand, and the protein skimmer helps too. Pretty sure I just have nitrates growing in my canister filter (which I clean every other week).
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Old 02-14-2012, 11:29 PM   #10
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Canister filters usually become nitrate factories! You are better off without it in my opinion unless you clean it about every 2 weeks
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Old 02-14-2012, 11:36 PM   #11
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You'll need some sort of mechanical filtration as well. Live rock doesn't take care of poop, uneaten food, and other things.
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Old 02-14-2012, 11:43 PM   #12
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Quote:
Originally Posted by bavass
Canister filters usually become nitrate factories! You are better off without it in my opinion unless you clean it about every 2 weeks
I do clean it every two weeks, but it is a pain. Besides, with the hoses kinked a lot my flow rate must be terrible.
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Old 02-14-2012, 11:44 PM   #13
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Quote:
Originally Posted by Ibrahim
You'll need some sort of mechanical filtration as well. Live rock doesn't take care of poop, uneaten food, and other things.
I know the protein skimmer is pulling a lot of solid waste out, though. Plus I vacuum substrate and rocks when I do the pwc.
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Old 02-14-2012, 11:46 PM   #14
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Quote:
Originally Posted by Leighton79

The live rock is the filtration. A box with some floss may cut it in fresh, but in salt where water quality is everything, that will just harbour junk until it rots. It's why I run BB, manual removal of detritus once a week and no sand or filters storing up nutrients.
So you have no substrate?
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Old 02-15-2012, 01:32 AM   #15
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Quote:
Originally Posted by Ibrahim
You'll need some sort of mechanical filtration as well. Live rock doesn't take care of poop, uneaten food, and other things.
No, but your cuc does.
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Old 02-15-2012, 01:41 AM   #16
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Quote:
Originally Posted by KAhner

No, but your cuc does.
They don't eat waste and gunk
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Old 02-15-2012, 02:22 AM   #17
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Quote:
Originally Posted by TeamTrash

So you have no substrate?
No, I have no substrate. Anything that the skimmer doesn't pull out I manually remove when I do my weekly water change. Contrary to popular belief you don't need a foot of sand in your tank to keep a reef....
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Old 02-15-2012, 02:27 AM   #18
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I have shown it before, but here's my tank that I run without sand or a filter....
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Old 02-15-2012, 02:28 AM   #19
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Old 02-15-2012, 02:29 AM   #20
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Quote:
Originally Posted by Leighton79
I have shown it before, but here's my tank that I run without sand or a filter....
But doesn't it have a filter of some sort built in its back?
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