3 + 8 = ?  
Input the result from the expression
Maximum attempts you can try: 10
 

Re: Water testing???

Subject: Re: Water testing???
by Fishlady on 12/12/2011 19:58:11

RO will have zero nitrate so I wouldn't expect to see any in the water after 5 days which means you're most likely testing correctly.

I'm afraid I'm not well up on which kits are good on the marine side these days, but years sgo the ones that tended to be most recommended were Salifert test kits. They were liquid titration tests though. I think you'll find that type is still the best.