Hi,
I'm not actually having any nutrient problems at all - just thought I would post this for the sake of discussion, to better my understanding.
I've now learnt that it's usually a CO2 limitation that causes a whole host of problems, not an excess nutrient/not enough light issue as many books etc will have you otherwise believe.
But for a moment lets flip this on it's head....
Imagine we have an aquarium that is ticking along very nicely. Photoperiod is good, CO2 is non-limiting, nutrients are non-limiting (EI).
Now, let's NOT dose any nitrogen.
Given that Light, CO2 and other nutrients are good, what are the true signs of a nitrogen deficiency?
Similarly, if we only hold off dosing Phosphorous what we be the expected signs of deficiency?
And again for Potassium?
Don't want to discuss micros (...yet). ;-)
And, to keep things simple, lets assume there aren't any fish in the tank, so no fish food etc. Nutrients only come from EI dosing.
Scott.
I'm not actually having any nutrient problems at all - just thought I would post this for the sake of discussion, to better my understanding.
I've now learnt that it's usually a CO2 limitation that causes a whole host of problems, not an excess nutrient/not enough light issue as many books etc will have you otherwise believe.
But for a moment lets flip this on it's head....
Imagine we have an aquarium that is ticking along very nicely. Photoperiod is good, CO2 is non-limiting, nutrients are non-limiting (EI).
Now, let's NOT dose any nitrogen.
Given that Light, CO2 and other nutrients are good, what are the true signs of a nitrogen deficiency?
Similarly, if we only hold off dosing Phosphorous what we be the expected signs of deficiency?
And again for Potassium?
Don't want to discuss micros (...yet). ;-)
And, to keep things simple, lets assume there aren't any fish in the tank, so no fish food etc. Nutrients only come from EI dosing.
Scott.