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It is NO3. Dr. Mallick formulated this for aquarium use.
BC
Is the N total N?Make sure therte's no NH4 in there or urea.
NO3 is cool.
NH4 ain't.
Overdosing NH4 is ugly and easy to do.
NH4 is best added via a decent regularly fed fish population that is well balnace to the plant biomass.
Too much and you more NH4 than the plants can use.
Too little is fine, it really will not harm the plant as long as there's a good _ consistent_ supply of of NO3.But a nice fish/critter bioload is the best fdor the long run.
Regards,
Tom Barr
It is NO3. Dr. Mallick formulated this for aquarium use.
BC
Guys,
The calculator will not give you the right dosage if the content is indeed changed as per FC. Note if your LGM is recent or not.
I just got the data fresh from Dr M. For LGM, it should be:
B 483
Cu 267
Fe 21,253
Mn 5,684
Mo 471
Zn 617
Based on the readings given by FC, what is the units?
The formula in the spreadsheet is in g/L.
Can I assume that 483 = 4.83g/L? And so on?
That is one assumption you cannot make! 400mg and 4.00g is alot of difference! Notice the new formulation deviates from the earlier one by a lot. It could also be mass for 500ml, 100ml instead of 1L. Check first.
Just checked the formula from the website, and what FC said is right. The formula is different now. The measurements are in mg/L.
So converting, we have
Fe (chelated) : 21,253 mg/L = 21.253 g/L
Mn : 5,684 = 5.684 g/L
B : 483 = 0.483 g/L
Zn : 617 = 0.617 g/L
Cu : 267 = 0.267 g/L
Mo : 471 = 0.471 g/L
BTW, whats the website URL?
So can we just replace the old figure of the formula with the lastest formula thats given by Nick?
Will I get the actual calculation if i do change the composition formula, Geoffrey?
That's what I did. Change the figures. Just check the formulae, shouldn't be a problem. Regards.
Sorry for the "quick and dirty job" (cut and paste). The units are in mg/litre. I have the dosage calculator that also compares LGM with TMG. If TMG user can tell me how much you dose per 100 litres of tank water, I can provide the calculator to emulate TMG using LGM. And tell me how to post the calculator too.
for TMG, it's 10ml per 100 litres of water
Folks, FC is right. The Lushgro-Micros composition document (MS Word) states so.
Looks like the Fe content will be lower for Lushgro-Micros. I will try to check and confirm before we amend the numbers in the Excel spreadsheet.
BTW - some background: Dr Mallick used to call his Lushgro-Micros simply "Trace Elements". It was using the old formula I put up earlier. Sometime in Sep 2002, he formulated Lushgro-Micros with the new formula. Only some months back that he updated his website http://www.singaporehydroponics.com and the content was listed there. I thought it was the same so I did not check. Anyway, I still have the old stock and so the Excel sheet still worked for me.
Cheers!
koah fong
Juggler's tanks
There is a very critical piece missing from the Lush Gro grow in the macro's: PO4.
KNO3, K2SO4 and KH2PO4 can make a ton of this and folks can tailor their ratios to get whatever range they are after including the PO4.
Adding everything and driving the PO4 to zero is not good for the plant. This slows N metabolism way down and hence NH4 uptake from fish waste etc.
NH4= algae blooms. Plants need enough P to suck out the NH4 and NO3.
Regulation of N assimilation is P dependent.
A great deal of N metabloism has been understood in the last five years and they will figure out most of it in the next few years from the way things are going in the metabolic plant biology field.
You can double or triple(or more) the uptake depending on how serve the N limitation is.
Fumbling around trying to analyze small amounts of pesky trace metals such as iron for optimal levels is going to be extremely difficult to #1, test for, 2# assess what is optimal for a tank, come to some sort of consensus about a tested level.
Even if you do dry weight tissue samples, this still will not tell you what is an optimal level or if the plant was limited. You could do some bioassys but it's going to be tough.
The best method that a hobbyist has available to them is keep the other nutrients at excess levels or within a good range and then manipulate the traces up(add more and more) till you no longer get a positive response from the plants.
For traces, since they are traces and not needed in large amounts, this will take longer than something like P, N etc. 3-4 weeks per dosing routine is a reasonable time frame when testing this to see if your dosing routine is optimal.
So you measure the volume of traces, say 5 mls per 80 liters of tank 3x a week for max possible uptake. I've add 10 mls 3x a week of TMG but it did not help nor hurt.
Max uptake will occur when: there are good nutrient levels maintained, high CO2, and very high light.
If a certain frequency and dosage fulfills this type of tank, then adding more is not needed unless you go beyong that light level.
So if you have 1/2 or 2/3 that lighting level, and you add this amount, you know that you are getting enough traces and probably extra.
So if something appears funny in your tank, look at CO2 then the macro and lastly at micros.
You'll find this method to work and be much easier.
Folks hate testing anyway.........folks will do it for awhile, but when things are going good, they tend not too.
"LUSHGro-Aqua content
in g/litre
N 7.179
K 51.711
S 16.667
Mg 2.942
Fe EDTA 1.683
Mn 0.612
Boron 0.314
Zn 0.092
Cu 0.025
Molybdenum 0.016
other minerals & vitamins : traces
LUSHGro MICROS content
Iron 170.04 g/litre
Manganese 30.61 g/litre
Boron 2940 mg/litre
Zinc 3780 mg/litre
Copper 1660 mg/litre
Molybdenum 2840 mg/litre
Cobalt traces
Vitamins traces "
Regards,
Tom Barr
Hi i just brought the Lushgro aqua.
The nitrogen content give is 7.179g/l.
If my present no3 is 0mg/l, how much of lushgro agua is to be add to my tank say 250l of water to a level of 10mg/l no3?
Can someone show me the calculation so that i can gauge the other nurtrients as well.
Use potassium as the major nutrient for dosage if using this aqua product. 30ppm of K should hit 4.3ppm of N for a 250l tank. Hope I got the calculations right though...
K: 51.711g/l = 51711mg/l
150ml of Aqua: 51711/1000 * 150 = 7756.65mg of K dosed
Amount of K in 250l tank: 7756.65/250 = 31.0266mg/l of K
N: 7.179g/l = 7179mg/l
150ml of Aqua: 7179/1000 * 150 = 1076.85mg of N dosed
Amount of N in 250l tank: 1076.85/250 = 4.3074mg/l of N
Plant Physiology by Taiz and Zeiger
wow! I don,t think I will depend fully on lushgro-aqua for N and K.
150ml of the 1L is too costy, have to get KNO3 and K2SO4 to do the job.
Peter,
you using aqua as well if not what is your fert regime?
squall[]
I use KNO3, K2SO4, KH2PO4 and Seachem flourish..[
Plant Physiology by Taiz and Zeiger
Is anybody else using Rexolin APN powder? The Rexolin powder is a lot cheaper, but I notice that you all seem to be using the LushGro Micros liquid instead, and was wondering if there is a reason for it.
Regards,
Kevin
Copper seems kinda high isn't it? Not very safe for aquatic plants and its inhibitants.
Plant Physiology by Taiz and Zeiger
Oops...correction..saw the wrong thing. Copper concentration should be acceptable. But does it contain all the necessary traces???
Plant Physiology by Taiz and Zeiger
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