Here’s Davids review after his initial purchase of Ultimate. He followed that up with a purchase of MAXI and provided this review and some photos of his tank and sump.
Returning customer here, 18kg of ultimate I have ordered in the past and loving it, and i ordered about another 10kg from amazon.. I recently installed a 40 breeder sump to my 150gal XH discus aquarium and got rid of 3 big sun sun canister filters. Since getting into discus I had to add more bio media because discus produce so much waste and they quickly overwhelmed my biological media and the new biohome ultimate media I recently added is not fully seeded yet..so these starter balls do a great job at kick starting the biological filtration..its a great product..thank you and I highly recommend it..