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Acro

Converting Filter From Chemical To Biological

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Hello,

I bought a new Canister Filter for my 55gal tank about 2 months ago. It only uses Mechanical and Chemical Filtration. My old filter used Mechanical and Biological filtration (with an option for chemical filtration, that I phased out) and the Biological filtration was wonderful for my plants (Java Fern). So here is the name and some info:

Marineland

Dual Purpose

Canister Filter

Magnum 350

Mechanical/Chemical Filtration (with optional) Micron water polishing

100% No Bypass

Filters 350 gallons per hour

For up to 100 gallon aquariums

Basically, there is a filter sleeve (the mechanical part) that goes over a basket that holds the carbon (the chemical part). Do you think I could just slowly replace some of the carbon with Biological Filter Media?

If you have any suggestions or experience with converting this type of canister filter or something like it, I would love the info!

Thanks in advance!

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Hello Acro. I do not use carbon at all in my tanks except when I am taking out medicines. In my opinion, I think it would be a good idea to start replacing the carbon with filter media since it is hands down the most effective method of filtration, assuming the basket is big enough to hold enough media that is needed for your size of tank. Since your tank has been reliant on the chemicals to break down your wastes, it will be a good idea to monitor your water paremeters closely as you will most likely notice a spike as we start to remove the carbon. Best of luck!

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I mix carbon and biological media in my filters. In my opinion, it's the best of both worlds :) but I suppose chaning over to biological wouldn't be so bad.

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I have a used MAG 350 that came in a trade deal along with a couple big tanks.

I have it set up to run on my 55G QT tank, when & if needed.

I kept the mechanical filter sleeve, discarded the carbon & stuffed the area where the carbon was with mono type scrubbie pads.

286746787_o.jpg

You can often find these pads @ dollar type stores packaged about 6 or 8 for a buck.

They last forever & are easy to clean.

They have a huge bio surface area, something like 360 cubic ft, per cubic ft of pads.

You could also used Matala type filter material, or some other brand like it, cut to size & rolled up.

http://www.matalausa.com/subcat25.html

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I also use the scrubby pads for filteration. They are awesome, and they last forever and ever. Just make sure to read the fine print on the bag to make sure they don't have any antibaterial stuff in them. Ive only ever seen one store that carried them labeled as "antibaterial", but better safe than sorry. :)

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I also use the scrubby pads for filteration. They are awesome, and they last forever and ever. Just make sure to read the fine print on the bag to make sure they don't have any antibaterial stuff in them. Ive only ever seen one store that carried them labeled as "antibaterial", but better safe than sorry. smile.gif

Years back I bought all the scrubby pads the local dollar had.

Which made me a believer in them, as they worked perfectly.

Then planned to built far bigger W/D trickle type filters.

So, I googled for a wholesale place that sold them as I needed about enough to fill a 55G drum.

I found 2 wholesale places online that sell them in bulk.

http://www.koleimports.com/default.htm < $100 minimum purchase

http://dollardays.co...uring-pads.html

I ended up buying several cases & the per piece price was about 6 or 7 cents each.

Now building a moving bed type VORTEX filter for a bigger prodject & wanted a bouyant media for that.

After checking prices on Kaldness K1 media:

http://www.pondpetsu...ia/kaldnes.html

I came up with a DIY floating media that has more surface area than K1, is inert & is near indestructable

269936816_o.jpg

Would you believe lawn & garden type SOAKER HOSE.......... LOL

Ended up buying 1000 ft of it.

http://www.mrdrip.co...rhosedeluxe.htm

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I kept the mechanical filter sleeve, discarded the carbon & stuffed the area where the carbon was with mono type scrubbie pads.

286746787_o.jpg

You can often find these pads @ dollar type stores packaged about 6 or 8 for a buck.

They last forever & are easy to clean.

They have a huge bio surface area, something like 360 cubic ft, per cubic ft of pads.

You could also used Matala type filter material, or some other brand like it, cut to size & rolled up.

http://www.matalausa.com/subcat25.html

That is a great idea, might try that in my external filter, thanks

A warning about using hoses, some of them come with treated with fungicides so be careful if you choose to use them as you wouldn't wnat that stuff in your tank water..

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I am VERY carefull about such things.

The ones I bought are 50% recycled rubber and 50% recycled polyethylene.

No fungicides, no nothing

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