Currently running the KZ Coral System on my 220 and have gone 4 months now with zero water changes. I'm considering switching to this product simply due to the over all cost while still achieving the same results. If I'm currently dosing BRS additives through a doser, can I start the ATI product with the same values while testing to see if I need to make changes? Currently dosing 75ml day of alk to maintain a 8, 55ml of calcium to maintain a 460 and 25ml a day of magnesium to hold a 1460. With everything doing VERY well, mainly SPS dominated tank, Id hate for something to go south switching over to this product. But the KZ coral system is costing me $100 every 4 months for 500ml at which I dose 30ml once a week. This product would last far longer plus from what Ive read, its doing a great job for everyone. Thoughts please as Im on the fence with the switch. Thanks Joe