Deepesh / Madan,
Thanks for the data, Was willing to gain knowledge too in the process. And was looking at getting away with the pottasium defitiency without inviting alge (without nitrates and phosphates). I know i can dose K2So4 but i am not sure to what level of dosing of K2So4 can i go with. So that So4 does not cross the limits, I suppose we can go with excess of K without troublig the Eco system of the aquarium. But i am not sure about So4, I am already at 1 tablespoon per week on this, Do not know how much more can i go with it to raise the Pottasium.
I am just trying to get to know the reason for not going by this.....
The reason i was looking at K2O was that, these are used for the preparation of N-P-K ferts, Was just thinking if that helps in aquarium hobby too, They talk about using Phosphorous pentoxide (P2O5) and Nitrogen in its compound form and a mix of them with K2O or KOH, And their composition percentage determines what type of a fertilizer is it. Was just thinking if i could get a similar pottasium rich fertilizer if its feasible.
Of course i do not wanna try out if others have tried it out.
I am not sure if water changes followed by dosing would help... cause it means more nitrates if i dose Kno3, May be i will try avioding Kno3 and phosphates and would dose only K2So4 lemme c if this solves the problem on lack of pottasium.
Off the topic but many NPK fertilizers will mention potassium content as K2O even if they dont have any real K2O. Another of those obscure facts the reason behind which I dont know.
I was suggesting the water changes so as to remove the excess anions. If your plants are taking up all the potassium you are supplying and leaving behind the phosphates and nitrates in the water column do a largish water change. That will drop the nitrate and phosphate levels allowing you to dose some more potassium salts. Thats the reason why water changes are an important part of EI. "50% water change is performed to reset the nutrient load".
SO4 will not cross any limit. Simply go ahead and dose K2SO4 to bring up your K. S is a macro nutrient and is needed. You'll never cause an excess of SO4 trying to maintain K with K2SO4. SO4 will fall into place along with your K.
Posted: Mon Aug 11, 2008 5:39 pm Post subject: Re: PMDD - Micronutrient Mixture
i am very much interested in getting those mixtures i.e Microsol-B,KNO3,K2SO4.. can you please let me know how much shold i take(minimum) and it would be great if it is possibel to ship it to me as i from mysore and working with Busy IT schedule..
I bought a bottle of liquid FeEDTA from a chemist. However, on the bottle, its simply mentioned "EDTA 10%". Its further written "for lab use only". Hope its FeEDTA and can be used for aquarium. How to know?
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