Thats alot of good CSI research here!
Btw, i was wondering how those plantacote and osmocote fertilizers compare to aquarium-specific root tabs... so i checked out the nutrient content of common ones like Seachem Flourish Tabs, here is the analysis chart of its nutrient content:
Seachem Flourish Tabs
Guaranteed Analysis
Total Nitrogen |
0.28% |
Available Phosphate |
0.17% |
Soluble Potash |
0.16% |
Calcium |
14.9% |
Magnesium |
0.06% |
Sulfur |
12.2% |
Boron |
0.029% |
Chlorine |
0.55% |
Cobalt |
0.001% |
Copper |
0.001% |
Iron |
2.2% |
Manganese |
0.23% |
Molybdenum |
0.0009% |
Sodium |
0.14% |
Zinc |
0.0024% |
Source:
http://www.seachem.com/Products/prod...urishTabs.html
The NPK content is understandably very low as the Seachem Tabs are designed not to have N & P (supposed to be supplied by the aquarium livestock waste production and food, and to help reduce potential algae issues).
The micro nutrients seem to be quite different in composition though, the Seachem Tabs seem to contain more different trace elements, and some of them like iron is way higher at 2.2% (compared to 0.4-0.45% in the plantacote and osmocote) while other elements are way lower like copper at 0.001% (compared to 0.02-0.05% in plantacote and osmocote).
I guess their trace nutrient compositions probably represent the differences between relative nutrient uptakes of terrestrial vs aquatic plants.
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