I just ran my koralia 3's in a bucket with about a 1:10 mix of vinegar to a gallon of water for about an hour. Then scrub the bad stuff off. I didn't try to get all the coraline off it though, but the algaes,etc came off easily.
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Craig & Holly
1-75g FW Planted
1-55g African Cichlid
1-125g w/ 4 turts
1-75g RR Reef
1-12g NC Mantis, 1-12g AP Brittle Star
2-cats
2-dogs (1 Catahoula Leopard Mix & 1 Shepherd Mix)
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