are these NPK ferts ok? - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 07-08-2010, 07:01 AM Thread Starter
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are these NPK ferts ok?

HI Folks
Starting off a 20gal lowtech tank and dosing the soil before getting things going..

I was hoping to get some help with these 2 products bought locally.. to see if they're ok for the tank..couldnt get all the other fancy stuff mentioned on the forum..

Manutec - tablet spikes
NPK 12:6:10 (%w/w)
Total nitrogen 12
Phosphorus as water soluble 2.5
Phophorus as citrate acid soluble 6.00
Total phosphorus 6.00
Total potassium as water soluble 10.00
Calcium as phosphate 6.00
Magnesium as sulphate 1.00
Manganese as sulphate 0.10
Iron as sulphate 0.10
Zinc as sulphate 0.10
Boron as boric acid 0.03

Brunnings All purpose NPK fertiliser
Nitrogen as Nitrates 6.8%
Nitrogen as Ammonium 8.2%
Total Nitrogen 15.0%
Phosphorus - citrate soluble 2.2%
Phosphorus - water soluble 2.1%
Potassium as sulphates 12.4%
Sulphur as Sulphates 6.0%
Magnesium as sulphates 1.2%
Iron as Iron oxide 0.3%
Boron as ZCalcium Borate 0.02%
Zinc as Zinc Oxide 0.01%


Thanks in advance
-s
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post #2 of 4 (permalink) Old 07-08-2010, 10:58 AM
tug
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Well there is always Osmocote Plus which contains macro and micro nutrients, but you will need to add it under the substrate. It floats. Sorry, are you adding those fertilizers to the water column? What are you planing on doing with the two fertilizers you mentioned? Aquarium Fertilizer ships priority mail International, http://www.aquariumfertilizer.com/


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post #3 of 4 (permalink) Old 07-08-2010, 11:08 AM Thread Starter
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no these arent going into the wc.. they are going into the soil.. which will be then covered with sandcap...

the sticks are basically subsitute for the jobes sticks that alot of folk here are using.. so again.. they will be inserted into the subtrate everynow and then..
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post #4 of 4 (permalink) Old 07-08-2010, 01:22 PM
tug
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Sorry, I hadn't finished my coffee. A lot of well respected names use Osmocote Plus under the substrate or in gel-caps (size OO or OOO) for DIY Plant Food Spikes. http://en.wikipedia.org/wiki/Capsule...t_gel_capsules

The Manutec - tablet spikes have a little more trace it looks like and a little less NPK. They would be fine, IMO.


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