I have been totally crazy for AVE Massive Chocolate Mint since I first tried it, but I have a problem with it gunking up my dual coil cartos within 2-3 days. BB, GJ and Hype doesn't gunk them up though. It wouldn't be that much of a problem, but I use DC cartos in my home made tanks, and changing out the cartos is a messy pain in the poo-maker. Does anyone have this same issue with Massive Chocolate Mint? Should I try using Boge 2.0 cartos with it instead?