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#121 |
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aka Nick
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If you have a sample of the crud at the bottom I could run a quick FTIR on it.
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#122 |
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Algae Grower
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Happi
So i have mixed two batches with a lab mixer, about to mix the 3rd. So I left the K2SO4 out of it the second time and never had any ppt issues. It does produce some ppt when you leave it in the fridge over time, but nothing compared to when i had the K2SO4 in there. From using a lab mixer, it is a pretty saturated solution, and does struggle a bit when you get to the last ingredient or two. Personally i plan on getting an auto doser at some point and figured in that situation i'd likely double or triple the dH2O and just increase the volume dosed, although this won't necessarily be practical for most folks. |
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#123 | |
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Planted Tank Guru
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Quote:
thanks i will let you know whever i make the next solution.
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#124 | |
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Planted Tank Guru
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Quote:
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#125 |
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Planted Tank Guru
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you should try this solution and Test it and see how plant will respond to it for you. i need people who are willing to test this one. some minor changes are made.
1000ml solution Urea (7 gram) calcium nitrate (10 gram) Magnesium nitrate (10 gram) CSM+B (15 gram) MnSO4 (1 gram) Ascorbic Acid (1g) (optional) Potassium Sorbate (0.5g) (optional) make sure to dose PO4 seperate 3x week 0.50ppm (around 0.16 P) even though Ascorbic Acid and Potassium Sorbate are optional, i think Ascorbic acid help plant with better growth. add them in the solution before adding anything else and wait for 10 minutes before adding anything else.
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#126 |
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Collectoritis Patient
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Why not use KCL instead of K2SO4? I agree the K2SO4 is a pain to dissolve.
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#127 |
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Planted Tank Guru
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i would but i need a some source of S which come from K2SO4, S is also important for plant growth, it should not be completely taken out. plus i think Cl is bad for plants if its overdosed.
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#128 |
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Algae Grower
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The magnesium/calcium nitrates reminds me of the older German formulas If I remember correctly. Also reminds me of Tobi's mix. Those Germans love their nitrates.
I've been reading a plant physiology book for fun and its saying something about the negative NO3 ions and positive NH4+ balancing the pH intracellulary (remember compartmentalization results in different pH values). Maybe that's the reason it works? Though the book is mainly about terrestrial plant. Just some preliminary thoughts, nothing conclusive. Dose away |
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#129 | |
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Planted Tank Enthusiast
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I'm producing ferts commercially (Aqua Rebell and sell them through my shop "Aquasabi") for people who do not want to work with all those chemicals. But here is the recipe for the new nitrogen fertilizer, i've posted it at my community http://translate.google.de/translate...4.html&act=url too: for one liter water add : 25,9 g potassiumnitrate 29,5 g calciumnitrate 17,6 g magnesiumnitrate 5 g urea ( :arrow: your tankwater pH should be <7 to avoid problems with ammonia) That will add 1 ppm NO3, 0,2 ppm K, 0,1 ppm Ca and 0,033 ppm Mg using 1 ml per 50 l tankwater. Here is where you can order Tobi's mix I've read about this about a year ago but I couldn't use urea because my pH is north of 7.0. The mix isn't new and was tried in the past but if Happi "improved" on it a bit then I say have at it. Just be very careful when using Urea. I think the focus is more on getting the nutrients to your plants that they are lacking. I'm in Texas where the water is basically liquid rock. Now one would think that I have enough calcium and magnesium because my GH and KH are through the roof, most of the times north of 14 sometimes as high as 22. What I discovered was that the water is very rich in calcium but had very little to no magnesium so when I started adding just magnesium the plants perked up and took off. Just like in the UK, the water is rich in calcium but has very little magnesium in some places so when they started adding magnesium the plants reacted in a very positive way. If your plants are getting the nutrients they need and are none-limiting, no amount of Urea is going to change that. Just be careful and enjoy the plants Dan
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Freedom is never more than one generation away from extinction. We don't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same. -
Ronald Reagan |
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#130 |
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Planted Tank Guru
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Tobi also stated K+ stunting the plants, this is not true at all, plant need K+ more than any other things, IMO it should be always higher, least 3 times higher than the Nitrogen. Tobi also have taken out Urea from his fert, while i think Urea is the main player here for fast plant growth.
am not working with Tobi's fert or trying to modify it, this is not even related to his fert at all, am working on this fert based on the research i been doing on plants, how they respond to differnt sources of nitrates etc. someone told me to use Mg sulfate and Ca sulfate to get same results but IMO it have soulibilty issue when adding in the solution, Mg and Ca nitrate were the only good source to work with. its not only the nitrate which is important here, but Mg and Ca are more important.
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#131 | ||
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Algae Grower
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I do find some very interesting products around here, like this one: http://www.chema.com.eg/SpcialFertilizers.html scroll down to Elodia* (sic) which reminded/lead me to this while searching about allelopathy a while back: https://docs.google.com/viewer?a=v&q...Ll0KOdPpBM2WQ7 Which coincidentally is also done in Germany! Those Germans love aquatic plants. I only read the abstract and skimmed the paper so apologies if it is not related. Quote:
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#132 | |
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Planted Tank Guru
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#133 |
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Algae Grower
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I am actively seeking ingredients to test your fertilizer but they are a little hard to come by in my country (only 25kg bags of calcium nitrate - thats ~55 lbs).
I meant it in the most sincere form. Trying new concepts will benefit this hobby as a whole |
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#134 | |
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Planted Tank Guru
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Quote:
i think you can get it from them for less quantity, am sure they can do that if you ask them.
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#135 |
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Planted Tank Guru
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Fattboa
i highly suggest reading this reasearch paper, this will unlock many question and answers, its quite long but very useful. http://www.fao.org/docrep/003/X6862E/X6862E03.htm
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