Lets see:
Ardjuna. You are saying that you have noticed the same as me but you give a different explanation/s.
We have both noticed this: If we see what looks like a PO4 deficiency we add more PO4 and solve it. We have seen that EI levels arent always enough.
Now where we differ is in our explanation of why.
You say that this is due to precipitation of PO4 or you also suggest that plants can consume more than EI levels. This could be the case but I dont think so. Precipitation doesnt happen to a huge extent normally for PO4 and most of our tanks dont consume more than EI.
My explanation is that by adding more PO4 (even than EI levels) your plants have easier acces to it and thus the deficiency disappears without touching the CO2. This is because deficiencies are due to a relationship Nutrients-CO2. Both of you are seeing the deficiency as a function of only 1 thing (CO2 for Ian and PO4 for Ardjuna). Both of you are right but not totally since I dont think you explain the whole pictur just half of it. You can solve the deficiency by modifying each of the two variables (PO4 and CO2) separately or at the same time. The point is the defficieny is a function of how much PO4 is in the water for the level of CO2 (relationship CO2-PO4). You could see it the other way around as well but its still a relationship.
Ardjuna. You are saying that you have noticed the same as me but you give a different explanation/s.
We have both noticed this: If we see what looks like a PO4 deficiency we add more PO4 and solve it. We have seen that EI levels arent always enough.
Now where we differ is in our explanation of why.
You say that this is due to precipitation of PO4 or you also suggest that plants can consume more than EI levels. This could be the case but I dont think so. Precipitation doesnt happen to a huge extent normally for PO4 and most of our tanks dont consume more than EI.
My explanation is that by adding more PO4 (even than EI levels) your plants have easier acces to it and thus the deficiency disappears without touching the CO2. This is because deficiencies are due to a relationship Nutrients-CO2. Both of you are seeing the deficiency as a function of only 1 thing (CO2 for Ian and PO4 for Ardjuna). Both of you are right but not totally since I dont think you explain the whole pictur just half of it. You can solve the deficiency by modifying each of the two variables (PO4 and CO2) separately or at the same time. The point is the defficieny is a function of how much PO4 is in the water for the level of CO2 (relationship CO2-PO4). You could see it the other way around as well but its still a relationship.
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