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Author Topic: What is best for a 200 litre aquarium External or internal filter?  (Read 6992 times)
spiritofscouse
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clownloach


« on: December 05, 2010, 10:48:50 AM »

What is best exteral or internal? And does one require more maintenance than the other?
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philfreenode
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« Reply #1 on: December 06, 2010, 04:31:57 AM »

welcome to badman's spiritofscouse. What sort of fish are you planning in this tank? I work it out to be about 50 gallon tank. What are the dimensions?

As long as you turn over the entire tank volume several times an hour minimum and have an appropriately established bacteria colony I think you can go with any type filter. I'm unfamiliar with external (cannister?) filters here. How about hang on back? Aquaclear 110 is nice.
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Ruthy
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« Reply #2 on: December 06, 2010, 05:43:59 AM »

Scouse? You from the North West of England by any chance?
It also depends on which room you're having the filter. If it's a bedroom or lounge then I'd go for internal rather than HOB (hang on back) to avoid the waterfall noise. If it's somewhere where you don't mind the noise, then you can go for either one
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Karen
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« Reply #3 on: December 06, 2010, 08:43:45 AM »

I have never been a fan of internal filters at all.

I would recommend a marineland Emperor 400.

This filter is legendary in it reliability, has separate bio wheels, mechanical filtration and a separate container (x2) to place alternative media in.  Nearly silent to run, easy to clean etc...

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dougrhon
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« Reply #4 on: December 06, 2010, 09:16:28 AM »

I certainly second the HOB and the Emperor in particular. I have two running on my 80 gallon and just bought two more for use on my planned 75 gallon.
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Karen
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« Reply #5 on: December 06, 2010, 10:11:30 AM »

To emphasize how easy they are to maintain......
I have a 450 gallon tank.  Its HUGE.  I set it up this fall and have not been too happy with water clarity despite having HUGE filters for it.

On a whim I pulled an emperor 400 out, put a really fine mesh floss over the cartridges and fired it up.  *Poof* clear water.  I will need to maintain the cartridges at least 2x a week, but I am using them exclusively for a water polisher, so that is expected.  When compared to the cost and effort of maintaining a proper water polisher on the tank (Which I own, but don't use), this is way better.

Seriously, an HOB on a 450 gallon tank. 
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spiritofscouse
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clownloach


« Reply #6 on: December 08, 2010, 12:46:03 PM »

thanks for all y our replies. I am still planning my tank which will be 100cm x 50cm x 40cm. So it seems neither is more than efficient than the other when it comes to internal or external.
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Karen
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« Reply #7 on: December 08, 2010, 01:50:06 PM »

So it seems neither is more than efficient than the other when it comes to internal or external.
  No one said that?!  We recommended an HOB filter for you.

Define "efficient".

You need a filter that can turn your tank over 5-8 times an hour, it should have separate places for biological and mechanical filtration and should have the ability to hold chemical filtration in the event you need it. 

The design of the Emperor 400 does all of that and makes maintenance super easy.  Internal filters are challenging at best to maintain.
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superpap56
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« Reply #8 on: December 08, 2010, 11:11:11 PM »

karen --i agree --the emporer is an excellant choice---i have several.
« Last Edit: December 08, 2010, 11:16:16 PM by superpap56 » Logged

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spiritofscouse
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clownloach


« Reply #9 on: December 09, 2010, 01:49:39 AM »

thanks for the clarification.An external filter it will be. I will put in one for which I am sure I will find spare parts locally.BTW I am in Malta (Europe) .
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dougrhon
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« Reply #10 on: December 21, 2010, 03:21:48 PM »

I always use two.
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« Reply #11 on: December 21, 2010, 03:30:23 PM »

I am going to disagree.
Muahahahahaha

I bought 2 whisper internal HOB's for the 25g just for the sake of silence.

I am just as happy with them as I am with other HOB's. same filter media. totally silent. no priming. easy cleaning. totally would recommend them for smaller tanks. plus since there are 2 of them, when I take the tank down (I only use it for QT) I can put one of them on my 75g to keep it seeded Smiley
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