To be fair, I've been a zeo user for a few years, and had happier results on smaller tanks. I remember once doing a water change, and compared the incoming freshly-made water to the water coming out of the tank, and the outgoing water had noticeably more clarity to it. That day sold me on the system. Plus seeing some of the very successful tanks running the system, like lobsterboy's or Dez's tanks, .. one can't help but want to try to emulate that. Oh well.
But, for whatever reason, it's not scaling up to the size of tank I have now. I'm at 280g now, before was 75g, and scaling up linearly doesn't seem to be working.
On my last tank which was 110g I tried both zeovit and pellets, and decided to try pellets alone, so just stopped zeovit. This nearly cratered the tank in the end. It was months and months of trying to restabilize it and in the end I don't think it ever really fully recovered before I shut the tank down (when the 280g was ready).
So I have to admit I'm a little concerned about just stopping cold turkey. Having said that, if the PO4 reading is 20-30ppb it might be that it's just not doing anything anyhow and therefore stopping something that is doing nothing, probably isn't going to be very significant in the end. I just don't know. I want to carefully measure my options before pulling the trigger.
Thanks for the thoughts so far, please keep them coming!
