Thanks for your thoughts.
ZEOlith does not pull out phosphates. It does pull out amonia. I haven't heard of anyone having calcium issues (calcium depletion). There are well over 100 users in the US and I have never heard of this being a problem. The reason why we suggest using a ca reactor is for a couple of reasons, one being stability, the other is to limit the nutrients, trace elements etc. I do know a couple users that are not using a calcium reactor and their additions of kalk or Randy's two part calcium additive has not increased.
The low corraline growth is a result of lower alkalinity, not ZEOvit. We suggest keeping the alk around sea water levels. If you keep it on the high side of this, the corraline will still grow, and if you go even a little higher, it grows to where it becomes a nuisance.
LPS and softies also benefit from this system. There are even products that are specifically produced for LPS corals within the ZEOvit method. Coloration and increased growth are observed in all tanks ranging from softies, to LPS to SPS.
Also, it is no problem taking a ZEO frag and putting it in a non ZEO tank. It might not stay the same color, but that is common even without using ZEOvit. We take corals right from the ocean and put them in our tanks all the time, this isn't that much different (in terms of low to higher nutrients).
Also, the message said to use a kalk reactor which we don't recommend. It's believed that the percipitated phosphates might not get skimmed out and are left in the tank to form phosphate pools.
If you ask ZEOvit users they will probably tell you that this system is around the same monthly costs or less than what they spent before trying this method.
Lastly, I don't know of anyone that has upgraded their skimmer because they started ZEOvit. A good skimmer is necessary, but most of us already have skimmers on our reef tanks anyway.
I'm not trying to argue, I just want to point out some misconceptions.