All About Matten Filters Including How To Make One
Our 28cm high Mobile Hamburg Matten Filter: https://www.envobeeshrimp.co.uk/product/hmf-biological-sponge-filter-black-10x10x28cm/ | By Envobee Shrimp | Facebook
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HMF Biological Sponge Block Filter for Power Head 8x8x30cm - Envobee Shrimp .
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