I have used both systems and they are similar but not. With Zeovit, it is said to run the basic 4, bacteria, zeostart3, zeolites, and sponge power. My new system which I will eventually begin a thread on is an AIO, so I am limited for space, but wish to achieve ULNS. I have many products remaining from when I was sponsored by AF, and will continue to use until they run out, after which, I will run a hybrid system. I like products from both, but currently am running the following.
1. 2 liters of AF Life Bio Fil in a reactor high flow
2. AF Probiotic Reef Salt
3. AF NP Pro and Pro Bio S daily
4. AF Carbon and Phosphate remover
5. AF Comp 123 system
6. AF A, B, E, and V
I am running on my system with limited live rock, and achieving ULNS results, but when I expire products, my modified plan will by hybridized and is as follows:
1. 2 liters of AF Life Bio Fil in a reactor high flow-------Will continue
2. AF Probiotic Reef Salt---------Switch to Tropic Marin Pro Reef Salt
3. AF NP Pro and Pro Bio S daily-------Switch to Zeovit Bacteria and Zeostart 3
4. AF Carbon and Phosphate remover----------Will continue as needed, Carbon for sure, not sure if I need Phosphate remover, Life Bio Fil is doing the job
5. AF Comp 123 system-------Will continue
6. AF A, B, E, and-------Will switch to and start using Pohls Extra, CV, CS, and Sponge Power
Something that I want to mention is that I do not dose full strength on anything, never did on either system, and most importantly you have to wait to observe subtle changes that occur with each product from either company. I have been using these systems for better than 10 years, so I have a grasp, but NEVER run full strength, this to me is where most get themselves on the razors edge, and overly pastel.