Bio spheres or brs bio pellets

[Chicago]

Ok what's the difference. Pros and cons. Thanks.

[dowtish]

Go to each of the manufacturer of these pellets and ask them what are the pellets comprised of and how is the extraction method done in order to make the pellets. If they cant tell you, dont buy them. And if they say a solvent based extraction method, dont buy them.

Warner Marine ecoBak is the only pellet I will use. They use a water based extraction method, and it's an entirely different polymer than most of the pellets on the market.