AF pro bio F damping
 

Hi all, I have recently transferred to AF system on my nano tank, I purchased AF pro bio F and it arrived damped, the powder inside lumped and changed into brown color, it smelled like caramel to me as well.
would like to have some suggestions on whether this is still usable or it is deactivated already?
Appreciate it!

any suggestions are appreciated.

Hello,
This products should be replaced.
Please contact store where you bought this product.

Best regards,
Aquaforest