Bivalent, 'white' active iron is one of the most important fertilizers for aquarium plants. The oxygen in water converts this substance into ineffective trivalent brown iron, however. This means that thebivalent iron needs to be protected. The actice E15 substance perform this task so effectively that some iron tests fail to detect the protected iron and indicate only the ineffective trivalent iron. E15 contains large quantities of chelate-protected bivalent iron, plus vital potassium and maganese.
A highly effective, immediately acting fertilizer for all aquarium plants. With vital potassium and maganese Highly effective remedy for yellow leaves For strong and healthy growth Depot effect from chelate-protected nutrients With 'white' bivalent iron = directly plant-available Phosphate and nitrate free. = Does not promote algae growt
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