Moser
Active member
I've never done weekly 50% WC's. I had high NO3 of about 80ppm and my corals wouldn't quit dying. So I did three 50% WC over the course of a week. And brought my N levels down to around 10ppm. The corals responded immediately with growth and color. In that one instance I didn't care about bacteria populations, I simply wanted to save my livestock...and I did. Keep in mind that I HAD been running BP for a few weeks with no reaction. After the N drop, still no reaction.
then I didn't do a WC for at least TWO months now. So again, I've probably changed a lot less than the average person that does 5-10% each week. (or bi-weekly) I don't think the zeo users would recommend having nitrates at 80+ppm, and would recommend changing that first over worrying about bacteria levels.
so I don't think you can blame my methodology, I wasn't doing ANY water changes when I started the BP, I was giving them the chance to show some results, and provide food for the corals I did have.
my tank was stable at about 10-15ppm nitrate after the first major WC months ago...till now, now they are at what looks like 5-10ppm.
while waiting for the SWC pellets I was told to take the current BP (original NP) out of the reactor...I was lazy and just turned it off...they sat in the reactor ithe saltwater and no flow for 10 days...no bacteria. (shrug)
there is no copper or wireing. There is nothing in use in the tank that is out of the oridinary for reefers to use. I have and still do test and get zero ppm with a copper test kit. (undetectable)
again, it be nice if the new stuff kicked in.
Sounds good, but clearly there is something putting nitrate into your system and I believe that is the source of your problem.
Regardless of the system you use to try and deal with the excess nutrients, you need to find where they are getting into your system from and address that first.
Either your live rock is leaching or you're overstocked, or feeding too much. I can't think of what else it could be.... I assume you are using DI resin on your RO?.
Maybe the methods you have tried are just being overwhelmed with the level of nutrients they have to cope with?.
Even Zeovit can sometimes take up to a year to get nutrients down according to the manual.....
Mo