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Using wool in sump setup


Avrilovigne
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Recently, my layer of wool (mechanical filtration) in my sump setup got stuck with debris and caused water from my outflow pipe to overflow into my living room. Some people told me I should not use wool filter as it is not necessary.

What are your thoughts? Is this required or do I just allow the water to flow directly through bio balls and just let the skimmer do the work?

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Where can I buy micron socks?
Any lfs should have it.

Display Tank : 36" x 20" x 20" Herbie overflow box design, Sump : 36" x 21" x 17", Frag Tank : 16” x 20” x 16”, custom built by Tank Culture.

Lightings : Ecotech  Radion XR15 Pro x 2 for Main Display Tank, Inled R80 x 1 for Frag Tank.

Chiller : Dalkin 1hp compressor with build-in drop coil.

Skimmer : Skimz Octa SC205i Protein Skimmer.

FR : H2Ocean FMR75 Fluidised Media Reactor with Hailea HX-2500 (Feeder Pump) running Rowaphos.

CR : Skimz Monzter E Series CM122 Calcium Reactor.

BPR: Marine Source Biopellet  Reactor with Continuum Reef Biopellet Fuel. 

Main Return Pump : SICCE Syncra ADV 9.0 & Jebao ACQ-10000 Water Pump.

Wavemaker : Jebao MOW-9 x2 for Main Display Tank & Jebao SLW-20M  Sine Wave Pump for  Frag Tank.

Water Top Up: AutoAqua Smart ATO Lite.

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you should use micron sock filter to filter out debris instead. filter wool will become a nitrate bed if left un-washed

Bro, correct me if i am wrong. For any given filter, even for the micron sock filter , if we put it inside the sump for maybe 2-3 weeks then it will become a nitrate factory too right?

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Bro, correct me if i am wrong. For any given filter, even for the micron sock filter , if we put it inside the sump for maybe 2-3 weeks then it will become a nitrate factory too right?

If you see the detritus/dirt trapped there, and it's left uncleaned, for a prolonged period of time, then yes it will become a nitrate factory.

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But Micron sock filters are not so porous and clot easily and may cause water to overflow too. I use Sera filter wool and replace it every 2 weeks.

Description of my humble tank

Size - 4 x 2 x 2.5 ft

Protein Skimmer - Reef Octopus OCTX 160

Return Pump - Germain Eheim pump 3400 litres/hr

Chiller - Hailea Chiller 300A

Wave Maker - Ecotech Marine MP40W

Lighting - Solarmax 4ft MH 2 x 150 watts & 2 x T5 lights

Date of Commission of Tank - 22 Dec 2010

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I've thought of using socks too but afraid might choke and water overflow out of sump. Currently using wool and weekly discarded when changing water.
If ur filter sock chokes or overflows easily, it might be due to the type of material of the sock, micron size of sock permeability, diameter and length of sock (too small).

Display Tank : 36" x 20" x 20" Herbie overflow box design, Sump : 36" x 21" x 17", Frag Tank : 16” x 20” x 16”, custom built by Tank Culture.

Lightings : Ecotech  Radion XR15 Pro x 2 for Main Display Tank, Inled R80 x 1 for Frag Tank.

Chiller : Dalkin 1hp compressor with build-in drop coil.

Skimmer : Skimz Octa SC205i Protein Skimmer.

FR : H2Ocean FMR75 Fluidised Media Reactor with Hailea HX-2500 (Feeder Pump) running Rowaphos.

CR : Skimz Monzter E Series CM122 Calcium Reactor.

BPR: Marine Source Biopellet  Reactor with Continuum Reef Biopellet Fuel. 

Main Return Pump : SICCE Syncra ADV 9.0 & Jebao ACQ-10000 Water Pump.

Wavemaker : Jebao MOW-9 x2 for Main Display Tank & Jebao SLW-20M  Sine Wave Pump for  Frag Tank.

Water Top Up: AutoAqua Smart ATO Lite.

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If ur filter sock chokes or overflows easily, it might be due to the type of material of the sock, micron size of sock permeability, diameter and length of sock (too small).

It might be due to feeding leftover food. I agreed that the socks diameter is important. I used a small one as space constraint. Hence now, back to wool type.

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Hi guys,

Just wanted to pitch-in in hope to have better clarity in this matter.

In a typical marine tank, we need:

  1. Mechanical Filter - Filter wool, filter sock, skimmer etc - Trap larger particles
  2. Chemical Filter - Carbon, Rowa, etc - Adsorb small molecule nutrients
  3. Biological Filter - Zeolites, bio pellets, LRs, Biohome etc - Biologically consumes carbon based nutrients

Mechanical filter is to removes larger particles and needs to be change frequently. I changed my filter media (wool/sock) every week and sometimes twice a week depending on the condition of the media (wool/sock).

If you do not change the media when they are saturated, the debris trapped will start to decompose and will cause spike the ammonia, nitrite and nitrate.

Saying that they are nitrate factories and removing them from your total filtration is not the answer.

In fact, it may cause more harm and the larger particles will not be trapped and will continue to float around or settle in areas that you are not able to reach and will start the decomposition there. Also if larger particles were to be trapped without your biological filters, it may cause a crashed without you knowing what hit you.

Although skimmer is also a mechanical filter, it cannot remove larger particles from your tank. In fact, skimmer skimmate may be affected by this un-trapped particles.

In order to have a robust system, it is better to have all 3 filtration in your tank.

Hope that helps.

"Reefs, like forests, will only be protected in long term if they are appreciated"
Dr. J.E.N. Veron
Australian Institute of Marine Science


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Hi guys,

Just wanted to pitch-in in hope to have better clarity in this matter.

In a typical marine tank, we need:

  1. Mechanical Filter - Filter wool, filter sock, skimmer etc - Trap larger particles
  2. Chemical Filter - Carbon, Rowa, etc - Adsorb small molecule nutrients
  3. Biological Filter - Zeolites, bio pellets, LRs, Biohome etc - Biologically consumes carbon based nutrients

Mechanical filter is to removes larger particles and needs to be change frequently. I changed my filter media (wool/sock) every week and sometimes twice a week depending on the condition of the media (wool/sock).

If you do not change the media when they are saturated, the debris trapped will start to decompose and will cause spike the ammonia, nitrite and nitrate.

Saying that they are nitrate factories and removing them from your total filtration is not the answer.

In fact, it may cause more harm and the larger particles will not be trapped and will continue to float around or settle in areas that you are not able to reach and will start the decomposition there. Also if larger particles were to be trapped without your biological filters, it may cause a crashed without you knowing what hit you.

Although skimmer is also a mechanical filter, it cannot remove larger particles from your tank. In fact, skimmer skimmate may be affected by this un-trapped particles.

In order to have a robust system, it is better to have all 3 filtration in your tank.

Hope that helps.

+1 well said bro!

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Hi guys,

Just wanted to pitch-in in hope to have better clarity in this matter.

In a typical marine tank, we need:

  • Mechanical Filter - Filter wool, filter sock, skimmer etc - Trap larger particles
  • Chemical Filter - Carbon, Rowa, etc - Adsorb small molecule nutrients
  • Biological Filter - Zeolites, bio pellets, LRs, Biohome etc - Biologically consumes carbon based nutrients
Mechanical filter is to removes larger particles and needs to be change frequently. I changed my filter media (wool/sock) every week and sometimes twice a week depending on the condition of the media (wool/sock).

If you do not change the media when they are saturated, the debris trapped will start to decompose and will cause spike the ammonia, nitrite and nitrate.

Saying that they are nitrate factories and removing them from your total filtration is not the answer.

In fact, it may cause more harm and the larger particles will not be trapped and will continue to float around or settle in areas that you are not able to reach and will start the decomposition there. Also if larger particles were to be trapped without your biological filters, it may cause a crashed without you knowing what hit you.

Although skimmer is also a mechanical filter, it cannot remove larger particles from your tank. In fact, skimmer skimmate may be affected by this un-trapped particles.

In order to have a robust system, it is better to have all 3 filtration in your tank.

Hope that helps.

Thanks!

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Hi guys,

Just wanted to pitch-in in hope to have better clarity in this matter.

In a typical marine tank, we need:

  • Mechanical Filter - Filter wool, filter sock, skimmer etc - Trap larger particles
  • Chemical Filter - Carbon, Rowa, etc - Adsorb small molecule nutrients
  • Biological Filter - Zeolites, bio pellets, LRs, Biohome etc - Biologically consumes carbon based nutrients
Mechanical filter is to removes larger particles and needs to be change frequently. I changed my filter media (wool/sock) every week and sometimes twice a week depending on the condition of the media (wool/sock).

If you do not change the media when they are saturated, the debris trapped will start to decompose and will cause spike the ammonia, nitrite and nitrate.

Saying that they are nitrate factories and removing them from your total filtration is not the answer.

In fact, it may cause more harm and the larger particles will not be trapped and will continue to float around or settle in areas that you are not able to reach and will start the decomposition there. Also if larger particles were to be trapped without your biological filters, it may cause a crashed without you knowing what hit you.

Although skimmer is also a mechanical filter, it cannot remove larger particles from your tank. In fact, skimmer skimmate may be affected by this un-trapped particles.

In order to have a robust system, it is better to have all 3 filtration in your tank.

Hope that helps.

Agreed with what bro Gouldian said, regardless of whether u use sock or wool, u still need to practice good husbandry ( washing & cleaning of filter socks & changing filter wool every now & then ) in order to keep your tank water clean. Cheers and happy reefing.

Display Tank : 36" x 20" x 20" Herbie overflow box design, Sump : 36" x 21" x 17", Frag Tank : 16” x 20” x 16”, custom built by Tank Culture.

Lightings : Ecotech  Radion XR15 Pro x 2 for Main Display Tank, Inled R80 x 1 for Frag Tank.

Chiller : Dalkin 1hp compressor with build-in drop coil.

Skimmer : Skimz Octa SC205i Protein Skimmer.

FR : H2Ocean FMR75 Fluidised Media Reactor with Hailea HX-2500 (Feeder Pump) running Rowaphos.

CR : Skimz Monzter E Series CM122 Calcium Reactor.

BPR: Marine Source Biopellet  Reactor with Continuum Reef Biopellet Fuel. 

Main Return Pump : SICCE Syncra ADV 9.0 & Jebao ACQ-10000 Water Pump.

Wavemaker : Jebao MOW-9 x2 for Main Display Tank & Jebao SLW-20M  Sine Wave Pump for  Frag Tank.

Water Top Up: AutoAqua Smart ATO Lite.

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Share on other sites

Hi guys,

Just wanted to pitch-in in hope to have better clarity in this matter.

In a typical marine tank, we need:

  1. Mechanical Filter - Filter wool, filter sock, skimmer etc - Trap larger particles
  2. Chemical Filter - Carbon, Rowa, etc - Adsorb small molecule nutrients
  3. Biological Filter - Zeolites, bio pellets, LRs, Biohome etc - Biologically consumes carbon based nutrients

Mechanical filter is to removes larger particles and needs to be change frequently. I changed my filter media (wool/sock) every week and sometimes twice a week depending on the condition of the media (wool/sock).

If you do not change the media when they are saturated, the debris trapped will start to decompose and will cause spike the ammonia, nitrite and nitrate.

Saying that they are nitrate factories and removing them from your total filtration is not the answer.

In fact, it may cause more harm and the larger particles will not be trapped and will continue to float around or settle in areas that you are not able to reach and will start the decomposition there. Also if larger particles were to be trapped without your biological filters, it may cause a crashed without you knowing what hit you.

Although skimmer is also a mechanical filter, it cannot remove larger particles from your tank. In fact, skimmer skimmate may be affected by this un-trapped particles.

In order to have a robust system, it is better to have all 3 filtration in your tank.

Hope that helps.

Thanks. the clarification does help ..alot

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