![LAVA ROCKS as MECHANICAL filter ? people use lava rock as bio media in small-sized pebbles but i want to use it as mechanical filter in in my diy filter for my LAVA ROCKS as MECHANICAL filter ? people use lava rock as bio media in small-sized pebbles but i want to use it as mechanical filter in in my diy filter for my](https://preview.redd.it/nnncrte4h8671.jpg?auto=webp&s=819cd3694ce5ffce27cfe8e3b55f0234ebcf9cfc)
LAVA ROCKS as MECHANICAL filter ? people use lava rock as bio media in small-sized pebbles but i want to use it as mechanical filter in in my diy filter for my
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New Mbbr Media K1 K3 Bio Filter Great For Diy Pond - Buy Mbbr Media,Media K1 K3,K1 K3 Bio Filter Media Product on Alibaba.com
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