no name canister filter on ebay... for a 55 gallon cichlid tank! - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 40 Old 04-08-2011, 01:41 PM
For canisters, i would only recommend fluval and eheim canisters. I have friends who have had other brands, ie. magnums, and there was always some kind of complains such as noise, too difficult to maintain, leaks, etc. almost all of them are using fluval and eheims now and none of them have complained since. I use a fluval 305 myself, its amazingly quiet and does a great job.

For HOBs, aquaclear is excellent but requires lots of regular cleaning. When i went to school, my parents forgot to clean it once and it clogged up hard and ended up spilling water everywhere roughly 10 gallons of water for me. Penguins are excellent as well, but not having a modular media is annoying, especially if you want to keep plants.
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post #12 of 40 Old 04-08-2011, 01:58 PM
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Originally Posted by SinCrisis View Post
For HOBs, aquaclear is excellent but requires lots of regular cleaning. When i went to school, my parents forgot to clean it once and it clogged up hard and ended up spilling water everywhere roughly 10 gallons of water for me. Penguins are excellent as well, but not having a modular media is annoying, especially if you want to keep plants.
That's interesting, but I can't visualize it - we'll see. If it does become an issue, I'll switch to all open bio-media, ensuring flow through. With the Inlet tube filtered, I don't think the open foam sponges will plug...time will tell.

Last edited by AbbeysDad; 04-08-2011 at 02:08 PM.
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post #13 of 40 Old 04-08-2011, 02:23 PM
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I have nylon covering the inlet tube holes so that no solids (waste/food) will get in - the sponges will be home to bacteria only.

There is no way my AquaClear can leak as the tank side outlet is significantly lower than the back/sides. The canister has connections and seals that can potentially fail far easier than silicone sealed glass. I wouldn't be 'afraid' of a canister for leakage, but many seem to be. My resistance is more cost and maintenance - each to his/her own.
IME sponges will get dirty no matter what.

That's not where they'll leak When the sponge gets clogged, water will back up in the filter and can spill out the back if the filter isn't angled to prevent this. Mine was sloped to the tank, but obviously not enough.....there was at least 5 gallons of water on the floor before I noticed the water level was low.


If you want it purely for biological media, then why not just fill the whole thing with seachem matrix or biomax? The ceramic media holds more bacteria than the sponges do.

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

Last edited by jaysee; 04-08-2011 at 02:26 PM.
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post #14 of 40 Old 04-08-2011, 02:33 PM
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IME sponges will get dirty no matter what.

That's not where they'll leak When the sponge gets clogged, water will back up in the filter and can spill out the back if the filter isn't angled to prevent this. Mine was sloped to the tank, but obviously not enough.....there was at least 5 gallons of water on the floor before I noticed the water level was low.
Because of the two layer nylon covering on the inlet tube holes, it should plug there long before the open foam sponge material in the filter.

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If you want it purely for biological media, then why not just fill the whole thing with seachem matrix or biomax? The ceramic media holds more bacteria than the sponges do.
Actually, I think sponge filters hold an amazing amount of biology, perhaps more than ceramics. I may switch to all ceramic or other bio-media at some point, but for now I thought I would try the sponges along with bio-ceramics x2.
Frankly I could load the chamber with a nylon sack of gravel and it would be an amazing bio-filter

Last edited by AbbeysDad; 04-08-2011 at 02:48 PM.
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post #15 of 40 Old 04-08-2011, 02:52 PM
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Sponges are primarily mechanical media with the added benefit of housing bacteria, while biomedia is specifically designed to house bacteria. There is far more surface area for the bacteria to live on with biomax or matrix than a sponge. Sponges are largely empty space.

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 #16 of 40 Old 04-08-2011, 04:17 PM
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Sponges are primarily mechanical media with the added benefit of housing bacteria, while biomedia is specifically designed to house bacteria. There is far more surface area for the bacteria to live on with biomax or matrix than a sponge. Sponges are largely empty space.
Not exactly. The rough surface of the bio-ceramic does provide a surface structure to hold bacteria, but as we look at open cell foam, there is a plethora of 'surface area' within the labyrinth of the cells - it is not limited to the outside surface, like ceramic and bio balls.

(Apologies to mamatoulouse for the thread highjack)
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post #17 of 40 Old 04-08-2011, 05:14 PM
aquaclears overflow when the sponges stop the water from flowing through it, it fills up on the motor side and the motor pushes the water under the lid and all over your floor. Unless you catch it when it happens, it just leaks water continuously everywhere. Penguins have a secondary overflow that goes into your tank when the media is too clogged, but aquaclears do not.
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post #18 of 40 Old 04-09-2011, 01:48 AM
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I'm familiar with sponges. The surface area for ceramics is NOT limited to the outside surface. The ENTIRE thing holds bacteria, since it's made of porous material. Water flows THROUGH the biomedia, not around it.

Again, a sponge is largely made up of vacant space.....that's why it gets smaller when you squeeze it......

Each PIECE of biomax has more than 100 square feet of surface area. Whether a sponge or biomedia has more surface area is not something that is up for debate.

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

Last edited by jaysee; 04-09-2011 at 01:57 AM.
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post #19 of 40 Old 04-09-2011, 02:11 AM
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An AC110 sponge is a little less than a half a gallon in volume (not squeezed). An equal volume of biomax would provide a surface area of over 3000 square feet.

Squeezing the AC110 sponge cuts it's volume in half.

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 #20 of 40 Old 04-09-2011, 03:07 AM
I agree with canister filters. No way I would use anything but a canister on a tank bigger then a 55 gallon. I personally would avoid the china ones. I've heard of Sunsun, the only issue I see is how long they last. The company is entirely in china so I personally would be hesitant about customer services.

Everything leaks in this hobby except internals. HOBs can get jammed and overflow, canister can leak too. Canister there are lots of potential leak points, but IMO the big one is the main O-ring seal. Simply if you put back together right its not a problem. I am very biased though. I owned HOBs before and NEVER again will I. Only equipment I can say I hate with a passion. I had a brand new aquaclear too... replaced it with an internal a week later. had that internal for 3 years.

I don't see the point of a completely biological filter. If your going to run a power filter it might as well be mechanical and biological. I also agree that ceramics have WAYYYY more surface area then and sponge. Gravel would work, but less surface area then even the sponge IMO.

.... I'm probably drunk.

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