one of the commercial names for the material fluval use to make their polishing pads is "dacron" it is used by furniture makers and in quilts ect it is very cheap you can pick up 3m+ rolls for under 10 bucks in aus .
I have heard this,and personally do not use carbon,but I have always been curious as to what people think it will leech back into the water. I don't use it because I don't want to spend the money on it,and have crystal clear water without it.But for the people how do,what do you think it is removing from the water,and what could it possibly put back into the water that would harm the fish?Gator;3474304; said:Not enough people know that when you use carbon it must be replaced periodically or else once exhausted it will start releasing everything its absorbed back into the water.