I just bought a dr tims unit and placed the pearls in there today. We talk about big changes of nitrates but mine are already under 5ppm i would assume my phosphates are a little high just because i have two spots of feather algea in my tank very small about 1 inch by inch total in a 60 gallon. All pearls are tumbling very well and im really hoping that i will begin to see this feather algea die off in a few weeks. Im dosing with microbactra and dr tims waste away to boost my biological filtration and help get cultures to the pearls. Now reading this im a little affraid ive made a bad choice. But in light of dr tims and seeing first hand that i cycled my reef tank in a week using his one and only i think im going to stick with it and see what happens any thoughts???