I've been running them for a couple months now. I'm running the vertex pellets and dosing zeobak per the instructions.
The reason I asked, "Is anyone having any problems with the pellets?", was because I was having some problems when I added the second bag. I ran a little over one bag the first month and then the day after the last meeting, I added the whole second bag. Not completely sure what happened but within 24 hrs. I started having a little stn on my acro's. Maybe I shocked the system by adding the whole bag at once, not sure. If I had it to do over again I would have added the second bag slowly. Like over a week or two's time. But, again, I'm not completely sure that is what was causing the stn. I did some water changes, cleaned my reflectors, and changed the carbon out as well as the gfo. Maybe that took care of the whatever was causing the problem if it wasn't the pellets.
Either way, my phosphates and nitrates are non existent. Everything looks good and healty now. I'm getting color back in corals that had lost it six months ago. I'm marking this up to everything I've been doing as well as the pellets.