Under gravel filter - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 11 Old 07-11-2012, 12:50 AM Thread Starter
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Under gravel filter

I recently bought a 29G tank. I installed 2 under gravel filters along with the filter that the tank came with. This is my first big tank and the under gravel filters are causing major bubbles and disruption in the tank. Just wondering if anyone else has had a similar problem or could tell me if there may be something wrong with the filters.
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post #2 of 11 Old 07-11-2012, 06:11 AM
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Thats the way UG filters work. You can try using an air diffuser instead of an airstone(finer bubbles). Or you can use small powerheads on the lift tubes instead of air drive.
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post #3 of 11 Old 07-11-2012, 08:11 AM
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NOOOOOOOOOOOO!!!!!!!!!!!!!!

Get it out. Trust me, you will be happy you did. UGFs just end up causing more problems and a lot more work long term. There are simply too many better options out there.

I would use sand as a substrate anyways, NO MAINTENANCE.

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post #4 of 11 Old 07-11-2012, 08:34 AM
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Are the bubbles coming from the riser tubes or from the bottom ? I know that sounds like a stupid question but, the disruption issue made me wonder.

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post #5 of 11 Old 07-11-2012, 08:56 AM
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Quote:
Originally Posted by Fishguy2727 View Post
NOOOOOOOOOOOO!!!!!!!!!!!!!!

Get it out. Trust me, you will be happy you did. UGFs just end up causing more problems and a lot more work long term. There are simply too many better options out there.

I would use sand as a substrate anyways, NO MAINTENANCE.
agreed on all counts.

125 - BGK, chanchito cichlid, pictus cats, silver dollars, palmas bichir
125 - cichlids (severums, bolivian rams, chocolate), rainbows ( turquoise, red), loaches (angelicus, zebra, kuhli and horseface), plecos (BN, RL and clown), denison barbs, tiretrack eel, pearl gouramis, betta
90 - Congo tetras, african knife, upside down cats, spotted ctenopoma, kribensis, delhezzi bichir
2.5 - betta
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post #6 of 11 Old 07-11-2012, 09:07 AM
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I would look at UGJ's or under gravel jets, they can be a good way of keeping detritus from settling on the bottom of the tank.

The only thing is though is the whole tank would need to be emptied FULLY, to install them.

Agree on what everyone else has said, UGF are more trouble than they are worth and when using small rocks / sand as substrate, are 99.9% blocked in a small space of time rendering them useless.

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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 #7 of 11 Old 07-11-2012, 02:20 PM Thread Starter
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Wow i didnt think they would be that bad. Me and my father got this tank togetherand he insisted on them. The bubbles and distruption are comig from the top spout.
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post #8 of 11 Old 07-11-2012, 03:00 PM
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My dad had my old 30 gallon tank first and when I got the 55G he INSISTED on me getting an under gravel filter...fortunately I didn't listen to him.

I will be switching from a gravel substrate to sand in a few weeks, and from what I've read it's way way easier to clean and the fish like it better as well. I would consider doing that if you can.
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post #9 of 11 Old 07-11-2012, 04:58 PM
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Your respective dads are probably my generation or at any rate mature enough to remember when undergravel filters were the only filter aside from the corner box filter. And as the UG was "out of sight" it became very popular. And to be honest, it is a good filtration system, if one understands the pro's and con's and works within them.

When I bought my first "large" tank, a 90g, in 1995 I insisted on undergravel and I refused to be swayed away from this by the very knowledgeable store employee. Well, when i got my even larger tank a year later [how this hobby multiplies] I did listen, and got an Eheim canister. Within a couple months, I went back and bought a second Eheim canister and pulled out the UG from the 90g. Never looked back.

For my 29g I use a dual Elite sponge filter connected to an air pump. Another similar option if you don't want the noise of an air pump [I have three tanks connected to my pump, and they are in the fish room so noise is not an issue] is an internal "sponge" type filter like the Fluval "U" series. External canister filters are more expensive and not necessary on tanks under 50g, so the Fluval U works fine. I have one (or a similar type) on my 33g.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #10 of 11 Old 07-11-2012, 05:53 PM
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Quote:
Originally Posted by Byron View Post
Your respective dads are probably my generation or at any rate mature enough to remember when undergravel filters were the only filter aside from the corner box filter. And as the UG was "out of sight" it became very popular. And to be honest, it is a good filtration system, if one understands the pro's and con's and works within them.

When I bought my first "large" tank, a 90g, in 1995 I insisted on undergravel and I refused to be swayed away from this by the very knowledgeable store employee. Well, when i got my even larger tank a year later [how this hobby multiplies] I did listen, and got an Eheim canister. Within a couple months, I went back and bought a second Eheim canister and pulled out the UG from the 90g. Never looked back.

For my 29g I use a dual Elite sponge filter connected to an air pump. Another similar option if you don't want the noise of an air pump [I have three tanks connected to my pump, and they are in the fish room so noise is not an issue] is an internal "sponge" type filter like the Fluval "U" series. External canister filters are more expensive and not necessary on tanks under 50g, so the Fluval U works fine. I have one (or a similar type) on my 33g.

Byron.
As always Byron your posts are extremely helpful. And yes, my dad is 65 now (not sure how old you are so if you're not in the 60's range my apologies) and when he got into the hobby that is what was popular. But he also was keeping about 6 new world cichlids and at one point 3 piranhas (not together) in the 30g hex tank I believe you and I discussed in a previous thread...obviously I know now that that was way too many fish for such a small enclosure.

Live and learn...or learn from our parents "mistakes"
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