-50% on a selection of fish food
En aquaponie, les poissons fournissent l'azote, mais l'eau manque souvent de fer, de potassium et parfois de magnésium ou de calcium. Ces compléments comblent ces manques sans nuire aux poissons ni aux bactéries. Le bicarbonate de potassium remonte le pH et le KH tout en apportant du potassium, le sulfate de potassium nourrit la floraison et la fructification, et le sel d'Epsom corrige un manque de magnésium.
Avant d'ajouter un complément, mesurez l'eau : les tests en gouttes pour le fer, le potassium et le magnésium indiquent ce qui manque vraiment. L'article Quel engrais utiliser en aquaponie ? détaille les apports utiles.
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