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Old 04-10-2013, 08:41 AM   #121 
waterdog
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Quote:
Originally Posted by Nibblez View Post
So would this actually be recommended over the HOB filters if you had a large tank? What sould be considered the ideal size or minimum size tank to use a sponge filter over a HOB unit? How about the filter units that sit in the tank, how do that compare to the spone filter?
Filter type depends on the fish being kept. Some fish don't like a lot of water movement, aka bettas in small tanks, Discus in large tanks. In some larger setups you can actually use a sponge filter in addition to a power filter. Case in point, I use a sponge filter in addition to my HOB in my goldfish tank as it provides more biological filtration as goldfish produce a lot of waste and IMO the HOB doesn't have enough surface area to handle the load. The HOB powers out the solid waste and the sponge provides more BB. Seems to work well as a tag team as fancy goldfish should be allowed 10 gal per fish. I have 7 in a 40 gal and my water is crystal clear with only once a week WC.
Personally I am not a fan of in tank units.

Quote:
Originally Posted by Tikibirds View Post
Do you know if there is a way to get a shorter lift tube? or is it easier to get a smaller filter?
Smaller filter for sure. You could always cut the lift tube, but the problem with that is you reduce the amount of updraft therefore reducing the amount of water drawn through the sponge!
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Old 04-10-2013, 08:50 AM   #122 
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Sorry about all the typo, was rush typing in class. Just got myself a 10 gal for my betta, going NPT in that tank soon, still have to research about shrimps and snails. I have a HOB filter right now and i was thinking of just relying on that, would it be sufficient?
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Old 04-10-2013, 09:04 AM   #123 
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Quote:
Originally Posted by Nibblez View Post
Just got myself a 10 gal for my betta, going NPT in that tank soon, still have to research about shrimps and snails. I have a HOB filter right now and i was thinking of just relying on that, would it be sufficient?
As long as it doesn't produce too much water flow you should be fine!
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Old 04-13-2013, 07:11 PM   #124 
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I'm getting ready to make a bunch of these up, at least 12. Can you help me with a couple measurements? What would you suggest for a 5 gallon tank & a 29 gallon tank? Does it matter what they are being used for (such as a 10 gallon being used for fry vs. a 10 gallon divided for 3 bettas)?
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Old 04-15-2013, 08:21 AM   #125 
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Dimension:
Size
Model #
Product Dimension
Max. Tank Size
Small
XY-2835
2.0"D X 4.75"H
5 GAL
Medium
XY-180
3.0"D X 6.5"H
10 GAL
Large
XY-380
4.5"D X 8.0"H
20 GAL



This chart gives you an idea of size for various tanks.

In my 10 divided I made two the size of 5 gallon filters and put one on each side as you don't have a lot of water movement in a divided tank.
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Old 04-15-2013, 01:51 PM   #126 
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Thank you waterdog! I was just recently thinking that I might need to do things differently like that in my divided tanks. Glad to know for sure it probably is a better idea.
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Old 04-29-2013, 10:56 PM   #127 
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I was curious... should one use carbon in sponge filters? or can we?
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Old 04-30-2013, 12:25 AM   #128 
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They do make carbon based sponge filters but I have only seen them on ebay.



IMO carbon is kinda pointless unless for some reason you need chemical filtration - like my snail tank needs carbon otherwise the water reeks to high heaven 24 hours after a water change. i am not willing to change the water every day.
Not sure how well the carbon sponge would work because carbon only works for a month or so and then needs to be replaced.

SInce i have money again, I plan on getting 2 sponge filters for the divided 10G so both sides get filtration and water movement. Does anybody now if these type of sponge filters are any good? They sell for ebay for pretty cheap


or should I just pay the extra few bucks and get the hydor sponge? The LPS has Deep blue sponges but they are all too big-for 30 gallon tanks and up.
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Old 04-30-2013, 08:38 AM   #129 
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Quote:
Originally Posted by Tikibirds View Post
They do make carbon based sponge filters but I have only seen them on ebay.



IMO carbon is kinda pointless unless for some reason you need chemical filtration - like my snail tank needs carbon otherwise the water reeks to high heaven 24 hours after a water change. i am not willing to change the water every day.
Not sure how well the carbon sponge would work because carbon only works for a month or so and then needs to be replaced.

SInce i have money again, I plan on getting 2 sponge filters for the divided 10G so both sides get filtration and water movement. Does anybody now if these type of sponge filters are any good? They sell for ebay for pretty cheap


or should I just pay the extra few bucks and get the hydor sponge? The LPS has Deep blue sponges but they are all too big-for 30 gallon tanks and up.
I'm using the sponge filter in the second picture (that has two sponges) in my 5 gallon tank. It's a bit big, but works well for me so far. But I did have a bad algae bloom the first month I started using it.

Oh, I probably should mention that my tank was already cycled with a HOB filter. So when I switched filters I left the filter insert in the tank for a few weeks to seed the sponge filter and (at least attempt to) avoid messing with my cycle. I don't know if that's part of the reason for my algae bloom.

So far, the "cheap" filter from eBay is holding my cycle just fine after 2 months.
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Old 04-30-2013, 10:43 AM   #130 
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Carbon is not a huge issue in most betta only tanks since weekly water changes usually prevent the water from having an odor. It's not a bad thing to have and can certainly help to 'polish' the water sparkling clean.
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