Trace elements for freshwater aquariums - Plus iodine for a healthy thyroid function - With essential vitamin B complex for less stress - With naturally nurturing aloe vera extract - Targeted addition of minerals that are missing or lacking in tap water. consumed in the aquarium, for example: iron, zinc, manganese, molybdenum and lithium - Ideal for replenishing trace elements in osmosis water - Prevents or cures diseases caused by a lack of trace elements