There are differing opinions on which is better, but both the flourite and the eco-complete are meant to be, well, complete. In other words, pick one and use it for your substrate, and leave the mixing to them. At least that's what I've understood from posts I've read. -rs ------------------ To unsubscribe from this list, please send mail to majordomo@thekrib.com with "Unsubscribe aga-member" in the body of the message. Archives of this list can be found at http://lists.thekrib.com/aga-member/