Over a year on and i am still a happy nopox user.
Currently dosing 1ml twice a day (350l) and running a small phos reator which has 3 small spoons of rowaphos changed every 3 weeks. Phos is about 0.08 when i do a change. Now trying kalk addition so will be interesting to see if i can stretch out the rowa change.
I did crash nitrates to 0.00 about 2 ~ 3 months ago (too much nopox) which in turn caused a bad cyano outbreak. I resisted the temptation to vacuum to see if icould recover more naturally. Cyano went from red brown to black over a period of 3 weeks and although the sand could do with a clean its all clear now. I will do a vacuum and replace 1cm of sand before Christmas which i tend to do yearly. Gives it that sparkling new tank look.
This was my outbreak at its worst, 3 weeks and gone
So you have to be diligent with the dosing, at the time i bought a new bottle and for whatever reason i dosed 2x what i had been dosing.
Current params.
Nitrate 0.25.
Phos 0.03~ 0.08
One of my larger updates.... Stuck at the airport for 4 hrs does that you know