Biological Media - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 06-15-2014, 02:09 AM Thread Starter
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Biological Media

What is everyone using for bio media? I have 4 bags of lava rock in the bio filter/waterfalls. Anyone got any better ideas for a bio media for ponds?
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post #2 of 8 (permalink) Old 06-15-2014, 02:51 AM
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I've had success with dollar store pot scrubbers

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post #3 of 8 (permalink) Old 06-15-2014, 03:28 AM
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Bio balls (they sell HUGE bags of them on ebay), pretty cheap.
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post #4 of 8 (permalink) Old 06-16-2014, 04:46 PM
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I used the pot scrubber type filter pad in a bag. Very hard to clean. Lava rocks may have large surface area but clog up quickly. Have not tried bio-balls. I use Matala filter pads in my waterfall filter. Manafacturer provides surface area for the pads which helps you with your bio load calculations.

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post #5 of 8 (permalink) Old 06-17-2014, 01:57 AM
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Can you list some specifics about your pond, filtration, type of fish, how many and what size?

Waterfall filters are not the best, especially with lava rock. The pores get stopped up within a month and become anaerobic.

If you can DIY, I can help you build something cheaply that will work much better.
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post #6 of 8 (permalink) Old 06-17-2014, 04:43 AM
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Quote:
Originally Posted by Kntry View Post
Can you list some specifics about your pond, filtration, type of fish, how many and what size?

Waterfall filters are not the best, especially with lava rock. The pores get stopped up within a month and become anaerobic.

If you can DIY, I can help you build something cheaply that will work much better.
We had our waterfall filter set up with lava rocks for 9 years with no issues. As long as you take the pads and lava rocks out and rinse them once a year you should have no problem.


+1 on the matala filter pads. They are tough as hell and easy to rinse out too. Just search for the bio balls on ebay, I swear, they are wonderful and cheap.
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post #7 of 8 (permalink) Old 06-17-2014, 11:47 AM
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Biological bacteria need clean surfaces to grow on. The pads and rocks have to be clean for the water to pass through, feeding the bacteria which in turn, clean the water.

What are your water parameters?

What kind of fish do you have?
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post #8 of 8 (permalink) Old 06-17-2014, 05:16 PM
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mix of matrix and eheim's.

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