I'm about 5 weeks in to zeo. I'm doing it for the colors. I started out with coral snow and coral vitalizer and couldn't believe the difference. Prior to this I was using the ultralith system but the use of those two zeo products lured me to the dark side
Previously using faunamarin I had issues with brown wafer algae, it took almost 5 months but I do believe that the faunamarin system beat it. Now if I could just do something about the little majano farm I have in the back forty
I agree with Tony, give it 6 months, then weigh the pros and cons. Thats pretty much what I'm doing. In 6 months I'll reasses if I'm interested in continuing with the whole system or just going back to the coral snow and vitalizer.