Zeostart3 smelled like nopox to me from what I can remember. I gave the basic zeovit system a try in June of 2018 after nopox and or gfo slowly killed every thing in my tank. ZeoStart3, Zeobak, zeo food, and zeolites with a small reactor all done at the recommemded doses. The only difference was the zeovit added brown slime to the rocks and glass as all my new acro frags died, again. Rebooted again with just growing chaeto and the rest is history. Y’all be careful with this stuff if you decide to try it. It did nothing positive for me. If you’re struggling with sps frags I guarantee you either you don’t have enough light or fish poop or both. It’s just that simple, assuming your big 3 are under control and your water isn’t contaminated. “Enough” or the “recommended” no3/po4 doesn’t tell the whole story. Yes corals feed on bacteria, but if you’re over skimming and stripping the water none of that matters. OP has an amazing tank but they are feeding 8 times a day. That’s the missing variable the majority of reefers are not utilizing. It’s not some special bacteria in a blue bottle. Just my $0.02, from someone that spent over $300 on the initial zeo start up.