Quote:
Originally Posted by EvolutionZ
nope they are not, i bought them quite expensive as they are high quality charcoal bamboo.
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thank bro.. but can explain more.. like wad bro globalcookie have brough up.. since it have been use for 3 months and wad he said is true wun it start to release harmful stuff into the water rather then releasing nutrients into the water?
*blur blur*