Quote:
Originally Posted by SniperLk 7 grams per week ? !!! That's 75ppm of NO3 every week, about twice what EI recommends which is already a lot.   |
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:

But when I changed the glosso for a sp. plant alike HC from the misiones jungle:

the ammount of Kno3 was smaller, 4 gramms a day every day.
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.
Regards
pd: I ´am arriving to the US past tomorrow but I will be for the Next 6 week in the contry side with little chances to check internet more that once a week