Quote:
Originally Posted by Christian_rubilar  Well, the idea is that every tank is different and the Kno3 protocol shows you the real consumption of your tank. For this reason I critize those methods that propose ¨add 1 spoon of this, half spoon of that¨ because we are feeding plants instead of glass tanks. The ammount of Kno3 that is proposed at the EI can be a lot or not enough depending of your plants, light, Co2, etc.
In this tank I used to add 6 gramms a day (54 ppm) of Kno3 when I had glosso or I had ciano: 
In the other hand, as you already probably read, I critice adding 1 ppm or more of Fe and Po4. I believe that this is useless and produces interferences. Probably what happend is that he nedded 70 ppm to induce Po4 to zero. And it is probably that after that, if he doesn´t add over 0.2 ppm of Po4 and 0.1 ppm of Fe, then the comsumption of Kno3 will be smaller.
Esencially, it is interesting how this little experiments can teach us how does our aquariums works. You know, if a ¨theory¨ asserts something and facts show you something different, then that theory must be abandoned. |
That's still a lot
I'm quite amazed that you can add 54ppm of NO3- weekly without having any build up. If I am, it's because I've seen a lot of tanks as planted as the one you're showing, with owners saying that they're using TPN+ only and dosing according to Tropica instructions. That means no more than 7ppm of NO3 per week.