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 Under Gravel Filters..

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Are They Any Good??
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Curby
The Boss
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PostSubject: Under Gravel Filters..   Mon Jun 21, 2010 8:10 pm

Are they any good.........????????

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Bwompus
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Male Number of posts: 541
Age: 44
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Registration date: 2010-02-08

PostSubject: Re: Under Gravel Filters..   Tue Jun 22, 2010 2:41 am

I'm curious as well on these. When you vote could you please explain why you like it or dislike it?
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Amber
Juvenile Bristlenose
Juvenile Bristlenose


Number of posts: 118
Location: Boise, Idaho, USA
Thank You Points: 12
Registration date: 2009-05-10

PostSubject: Re: Under Gravel Filters..   Tue Jun 22, 2010 8:13 am

I had one long ago when they were popular. It seemed to do an acceptable job of filtration Then somehow a clown loach got trapped underneath it and died. Ugh, what a mess that was to clean up. I have not had one since.
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deano
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Registration date: 2009-07-26

PostSubject: Re: Under Gravel Filters..   Tue Jun 22, 2010 10:15 am

i hate them like amber says fish get down the uplift tubes and get stuck and dye. plus i dont see what good 1/2 inch of poop trapped under the plates for a long time can be of any bennefit to the tank in the long run. plus you need to have a thick layer of gravel for them to work propperly and i dont like thick substrates in my tanks. my rant over lol
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Doug
Moderator
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PostSubject: Re: Under Gravel Filters..   Tue Jun 22, 2010 2:51 pm

Never used them so i can comment but that siad i hear nothing but poor feedback

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DJ-don
Fish Egg
Fish Egg


Male Number of posts: 18
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Registration date: 2009-07-19

PostSubject: Re: Under Gravel Filters..   Sat Jul 03, 2010 12:53 am

it may seem as a dodge filter because it sucks al the crap in the gravel but in the end, makes a huge biological filter. it works a charm!!!!
some people only use UGF's with great success. and plus a lot of people say that UGF's stuff up your plants but in the end helps them grow because the plants use the waste in the gravel to help them and plus the gravel's bio bacteria feeds on that gunk more efficently.
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-Paul-
Juvenile Bristlenose
Juvenile Bristlenose


Male Number of posts: 105
Location: Alfreton | Derbyshire | UK
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Registration date: 2010-07-30

PostSubject: Re: Under Gravel Filters..   Sun Oct 24, 2010 1:59 am

The best filter system you can have by miles.. BUT, by no means a stand alone system.

Having a UGF means you need not worry about really cleaning out any other pump filter you choose to have in the tank as all the healthy bacteria etc is all stored by the UGF, then once every six months I'd remove the Powerhead Or if like me you use the 'oldfashioned' air powered remove the air line, send down the syphon tube and remove about half the glup that under there..

When you consider just how dirty pleco are, to me it makes sense.. just my opinion anyway.. Currently I dont have one and that's the problem, when you have a tank set up its hard to completely empty to fit one.
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wolverine
Chief poster
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PostSubject: not sure i agree but very good advice too:0   Sun Oct 24, 2010 2:57 am

very good advice on the last post, I went away from undergravel when my fry used to get stuck under it...

though it is good if managed accordingly, and you seem to have come up with a similar method of cleaning that i used too Smile

keep up the good posts Smile
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jim.and
Moderator
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PostSubject: Re: Under Gravel Filters..   Sun Oct 24, 2010 6:25 am

I changed from undergravel to external/internal filtration over 30 years ago when undergravel where powered by noisy airpumps. They did a good job but the external/internal filters where so much quieter.

I recently bought a second hand Aquastart 320 with undergravel filtration and I'm pleasently surprised by it.



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Mooo
Moderator
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Female Number of posts: 957
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Registration date: 2009-12-14

PostSubject: Re: Under Gravel Filters..   Wed Oct 27, 2010 5:45 pm

I don't liek them, they might be better than many years ago when I had one in a tank. But i like plants and you can't really grow good plants in the without having very think gravel...Just my experience for many moons ago, I don't know if the setups have change or even if they have evolved..But I never liked them ...
I love my sponge filters, my HOB's & my gravel vac... Very Happy
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graham26
Juvenile Bristlenose
Juvenile Bristlenose


Number of posts: 40
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Registration date: 2010-04-21

PostSubject: Re: Under Gravel Filters..   Thu Nov 04, 2010 7:00 am

something from the dark ages undergravel filters they are so basic compared to modern filters why would anyone who wants to keep there fish at there best use one
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-Paul-
Juvenile Bristlenose
Juvenile Bristlenose


Male Number of posts: 105
Location: Alfreton | Derbyshire | UK
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Registration date: 2010-07-30

PostSubject: Re: Under Gravel Filters..   Thu Nov 04, 2010 7:14 am

Mooo wrote:

I love my sponge filters, my HOB's & my gravel vac... Very Happy


You can still use your gravel filter with an Under gravel system.. http://www.youtube.com/watch?v=c4K8-erlE2E
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steve47
Small Fry
Small Fry


Male Number of posts: 27
Age: 50
Location: kings lynn norfolk
Job/hobbies: car racing.
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Registration date: 2010-12-10

PostSubject: re.undergravel filters   Sun Jan 09, 2011 1:52 pm

i voted no for bottom feeders but for my other fish they were fine ,longest time before tank clean out 2 years.
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XinguHooks
Fish Egg
Fish Egg


Male Number of posts: 2
Age: 42
Location: Germany
Job/hobbies: Environmental Training / OrnFish
Humor: sufficient
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Registration date: 2011-02-22

PostSubject: Re: Under Gravel Filters..   Thu Mar 03, 2011 2:44 pm

Hi there,

I have been running undergravel filters with external Eheim filter for more than 15 years. They are doing a good job, though it is quite an effort to build up an refresh the whole filter. I use different grain fractions of gravel and coarse sand, which mix with the time. Thus sieving for bigger tanks might bring you close to madness, but it surely is a very reliable way of filtering, especially if you like a good growth of plants in ypur tanks.
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1077
Fish Egg
Fish Egg


Male Number of posts: 5
Age: 58
Location: United States
Job/hobbies: construction
Humor: small children,large women
Thank You Points: 0
Registration date: 2011-03-30

PostSubject: Re: Under Gravel Filters..   Mon Apr 04, 2011 12:47 am

Have used UG filter' s with reverse flow that were very effective. Prolly wouldn't use one without reverse flow due to reason's already mentioned (dirt under filter plate.)
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