floating carbon

No I have never seen carbon float.Who ever told you that dose not know what they are talking about. You can put the carbon anywhere that water will flow through it but the best place for it is in the last chamber of your filter.

 

yeah you definately want water to flow through the carbon

 

That's my bad on using the term float, I meant after placing the carbon and PO4 remover in the mesh bag cinch the top and secure it so that the top of the bag is out of the water. You can have the drawstring slightly sticking out of your hood or tie it around one of the cords so that the bag " floats" instead of sinking to the bottom and either clumping up or sticking to your pumps intake. The carbon iteself will sink...btw make sure you rinse your carbon/ PO4 in RO water prior to placing it in your tank to remove the dust and fine particles. Use the left chamber where your pump is. If you need to raise your water level so be it.