Dennerle Plant System V30 fertilizer gives aquarium plants all the nutrients they need to ensure strong, luxuriant growth. All nutrients and strength-building substances are available for direct intake in plant-active form. Important trace elements such as iron, boron and manganese give the leaves magnificent colours. Red and reddish-brown leaf colours are intensified, while attractive leaf markings are enhanced. Dennerle Plant System V30 combats nutrient deficiencies, strengthens plants from within and helps to counter stagnant growth. Highly-effective protective shells - so-called chelates - mean that the nutrients stay available to plants for a long time. Symptoms of deficiency are kept at bay with lasting effect, allowing the plants to display their magnificent rich green colour once more. Dennerle Plant System V30 is guaranteed phosphate- and nitrate-free - does not promote algae growth.Dennerle Plant System V30+ complete fertilizer for large and heavily planted aquariums with go