železo je mikroprvek, který rostliny potřebují ke zdravému růstu. Železo v prostředí akvária oxiduje a vytváří nerospustné sloučeniny a stává se tak nedostupný pro rostliny. V hnojivech pro akvarijní rostliny témšř vzždy najdeme nějakou formu chelátu železe (EDTA, DTPA, EDDHA), který oxidaci železa zabrání a železo je tak dostupné ve vodě a rostliny ho mohou přijímat.

Nedostatek železa se projevuje tzv sklovatěním, kdy listy rostliny křehnou a blednou.

Starší akvaristé v dřívějších dobách používaly rezavé hřebiky, které vkládalí ke kořenům rostlin. Dnes se můžeme rozhodnout mezi chelaty železa a nebo obohacením substrátu o "přirozeně" zoxidovanou formu železa, kterou obohatím substrát při zakládání akvária.

Cheláty železa:

  • Fe-DTPA
  • Fe-EDTA
  • Fe-EDDHA




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