MyBFF Biorolls. Add more to take care of the ammonia in your My Backyard Fish Farm. If you add more fish for a more intensive system, you need to add more Biorolls. Our MyBFF Biorolls are prepared with beneficial nitrifying bacteria to help you get your system started fast. We call it Fast Start (Service Mark) because it is a special service that we offer. Our Fast Start (SM) MyBFF Biorolls will help get your system started fast.
