I've assembled a list of sources for micronutrient sources in the EU, especially in powder form. While this topic has been discussed some on for example the UKAPS forum, I couldn't easily find a comparison like this or even just a single source of dry micros available to me (from non-UK sources).
The list contains an normalized breakdown of the Fe, Mn, B, Zn, Cu and Mo (and others, where applicable) content, normalized to Fe for easy comparison. Mirconutrient content is color graded in each column from blue at zero percent content, a green midpoint at the values of Burr's micro mix, to red at 200% of the values of Burr's micro mix.
Cu has an additional column to the right. This shows the ppm of Cu one would add when dosing a given micro mix to 0.2 ppm Fe, or, somewhat equivalently, the Cu content in the aquarium when maintaining a 0.2 ppm Fe level in the water column, not accounting for consumption or any other factors besides dosage. Here, the Cu content is color graded to green at Burr's value and red at 0.01 ppm, a level potentially dangerous for livestock, especially Caridina shrimp.
I don't endorse any of these vendors specifically and certainly have not tried all of these products. I don't even know if you can buy all of these unless you buy in bulk for a business. I also don't know whether some of these contain traces of some compound or another that will affect aquariums adversely.
This is why I have divided the list into three brackets. Top bracket contains known US micro sources, for reference. Second bracket contains products by aquaristic shops. Third bracket contains any and all microfertilizers I could find, which are usually intended for hydroponics or gardening.
There's a color key at the bottom of the list and links to the products on the right. All the way to the right you can see (and double check!) the raw values provided by the manufacturers.
Please let me know of any suggestions for improvement or additions and I'll happily add them!
The list contains an normalized breakdown of the Fe, Mn, B, Zn, Cu and Mo (and others, where applicable) content, normalized to Fe for easy comparison. Mirconutrient content is color graded in each column from blue at zero percent content, a green midpoint at the values of Burr's micro mix, to red at 200% of the values of Burr's micro mix.
Cu has an additional column to the right. This shows the ppm of Cu one would add when dosing a given micro mix to 0.2 ppm Fe, or, somewhat equivalently, the Cu content in the aquarium when maintaining a 0.2 ppm Fe level in the water column, not accounting for consumption or any other factors besides dosage. Here, the Cu content is color graded to green at Burr's value and red at 0.01 ppm, a level potentially dangerous for livestock, especially Caridina shrimp.
I don't endorse any of these vendors specifically and certainly have not tried all of these products. I don't even know if you can buy all of these unless you buy in bulk for a business. I also don't know whether some of these contain traces of some compound or another that will affect aquariums adversely.
This is why I have divided the list into three brackets. Top bracket contains known US micro sources, for reference. Second bracket contains products by aquaristic shops. Third bracket contains any and all microfertilizers I could find, which are usually intended for hydroponics or gardening.
There's a color key at the bottom of the list and links to the products on the right. All the way to the right you can see (and double check!) the raw values provided by the manufacturers.
Please let me know of any suggestions for improvement or additions and I'll happily add them!