Juwel Filter System. - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 6 Old 01-14-2010, 08:51 AM Thread Starter
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Juwel Filter System.

Hi guys

So could someone tell me what the sponge pads do such as Nitrate, Carbon and Cirax? and the Fine, Coarse and Poly-Pads.
How many do i need in my tank and do they need to be in speicific order.

Just abit of info about this filter system would be great. Thanks

Dan
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post #2 of 6 Old 01-14-2010, 09:30 AM Thread Starter
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Here's some pics.



This is how they are stacked in the system.



What is this?



Many thanks

Dan
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post #3 of 6 Old 01-14-2010, 09:40 AM
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Hi Dan, the carbon and yaddy ya stuff, you really don't need unless you medicate the tank. They only "work" so long and after that act just like a normal sponge.
But since you have them, you wanna set it up from where your tank water comes in (let's say that comes in the bottom) from Coarse to Fine, so your muck water will be filtered to coarse pads first and then gets finer as it goes thought before returning to your tank. Eg the ceramic balls there should be the first thing the water hits when coming in then followed by sponges from coarse to fine.
Hope this helps ya.

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post #4 of 6 Old 01-14-2010, 09:54 AM Thread Starter
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yeah because the ceramic balls seem to be in the middle. i dont kno why!
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post #5 of 6 Old 01-14-2010, 11:53 AM Thread Starter
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also how do i check where the water gets pulled into the filter system before being filterd.
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post #6 of 6 Old 01-14-2010, 12:06 PM Thread Starter
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I was just researching and i come accross this artical. Let me know what you think.

Before
The juwel internal filter is a perfect example of german design. Water enters the filter from a number of opening across the filter body. The filter medi
is held in two parts by two plastic cases which ensure a gap between the two groups of filter medium. There is two exit holes which feed the water to the internal powerhead back into the tank.

This set up ensures the following

> maximum water intake with little chance of blockage and some surface skimming
> one block of filter media with a high turnover of water through it ensuring high speed mechanical/chemical /bilogical filtration.
> a second block of sponge media with a slower throughput of water ensurehigh quality biological filtration

This is fine and works very well. However I have experimented with some changes which require nothing to be altered or cut and glued in in anyway, maintaining your warrenty.

How to improve the filter

Step 1
Remove all filter media and the two plastic baskets which hold them. You will not reuse the carbon and nitrate sponges, in a planted tank they are not good things to have.

Step 2
Fill a filter bag such as a 3ltr SERA filter bag with your choice of biological filter material. I used a larva based material and some old efimeche. I easily filled a 3litre bag and the filter chamber still looked empty, you must use a filter medium bag as trying to take loose filter media out of the filter any reason is just not fun. Place this back in the now totally empty filter container.

Step3
Block the middle water exit (marked A in the after diagram) this will ensure all water will travel the full distance through all filter media. I achived this by using a small flat piece of flat plastic which was kept in place by the weight of the replacment biological filter medium.

Step 4
Place a small amount of sponge down the back tube area (marked B in the after image). This will reduce the inflow from the slots in the back of the filter body, leading to a higher flow rate through the inlet next to the heatersat giving improved heat distribution a little.

Step5
Place a filter wool pad ontop of the new biological filrer material, then place a Juwel sponge ontop. You will still space enough to place yet another juwel filter sponge ontop. This will further increase the amount of bio filter material.
Do not place a filter wool pad on the top, placing one or more sponges on top will increase the life of the filter wool by trapping medium to large waste material as it comes inot the filter.


The end resuilt.
An internal filter with more bio mass than all but the largest externals, a s
tandard Juwel will give you 3-4 litres. Filterwool pad that lasts much longer.
A slight reduction in the flow output leading to a more efficient bilogical filtration (slower is better). Water flowing over much more filter material (as you block the middle filter exit hole 'A'). More water flowing over the heaterstat, giving a more stable heat level.



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