In nature, new nutrients are constantly supplied by the seeping and flowing water. In an aquarium, we have to think about the right nutrients and add them regularly. Ideally, fresh nutrients are added in connection with the water change.
In nature, waste products are washed away by flowing water. The rain supplies fresh water. In our living space, this is done by a regular partial water change of at least 25% every 14 days. A water change at weekly intervals has an even more positive effect. The liquid fertilizer is simply added to the aquarium according to dosing recommendations after the water change.
Dennerle Plants Liquid
The Liquid fertilizer contains iron (Fe), potassium (K) and trace elements and is primarily designed for aquariums with few plants and/or a high fish population. It can therefore also be called a complete iron fertiliser. Liquid is a fertilizer without the nutrients nitrate (N) and phosphate (P). These two nutrients are usually sufficiently present due to the fish stocking and do not need to be specially fertilised. Iron, magnesium and other important micronutrients ensure strong green plants with particularly healthy growth. Liquid fertilizer can be used for invertebrates without any problems and is absolutely harmless for shrimps, crayfish and snails.
Liquid 125 ml Art. 31005 | Liquid 300 ml Art. 31006
Declaration 10ml of Dennerle Plants Liquid fertilizer in 100 litres of water will add the following nutrients:
N 0.0mg/l, P 0.0mg/l, K 0.8mg/l, Mg 0.4mg/l, S 0.9mg/l, B 0.004mg/l, Cu 0.006mg/l, Fe 0.07mg/l, Mn 0.04mg/l, Mo 0.002mg/l, Zn 0.002mg/l
Application: 1 pump stroke = 2ml per 20 litres. For a 100 litre aquarium we recommend to start with the following dosage and adjust it to the individual needs. We also recommend a weekly 25% - 50% water change.
| Without CO2 |
10 ml per week |
| CO2 + low light |
2 ml per day |
| CO2 + high light |
4 ml per day |
Tip: You can also divide the recommended amount per week by 7 and add it daily. If you use a dosing system, you can also divide the daily amount into even smaller amounts and dose several times throughout the day.
Dennerle Plants Liquid Plus
Liquid Plus fertilizer contains the same amount of iron (Fe) and trace elements as Liquid, but additionally contains nitrate (N) and phosphate (P), as well as a higher concentration of potassium (K) and is ideally suited for heavily planted aquariums and aquariums with fewer fish. Liquid Plus is therefore a complete fertilizer with all micro and macro nutrients in one bottle. This liquid fertilizer is the best choice for particularly fast-growing plants with higher nutrient requirements and low fish population. It is advisable to pay attention to the plants needs and, as a first measure, to dose more sparingly and increase the quantity and frequency of water changes when algae infestation begins. At the same time, you should check the water values and all essential components to find the root cause. Liquid Plus can be used for invertebrates without any problems and is absolutely safe for shrimps, crayfish and snails.
Liquid Plus 125 ml Art. 31007 | Liquid Plus 300 ml Art. 31008
Declaration 10ml of Dennerle Plants Liquid Plus fertilizer in 100 litres of water will add the following nutrients:
N 1.3mg/l, P 0.1mg/l, K 1.0mg/l, Mg 0.4mg/l, S 0.9mg/l, B 0.004mg/l, Cu 0.006mg/l, Fe 0.07mg/l, Mn 0.04mg/l, Mo 0.002mg/l, Zn 0.002mg/l
Application: 1 pump stroke = 2ml per 20 litres. For a 100 litre aquarium we recommend starting with the following dosage and adjusting it to the individual needs. We also recommend a weekly 25% - 50% water change.
| Without CO2 |
10 ml per week |
| CO2 + low light |
2 ml per day |
| CO2 + high light |
4 ml per day |
Tip: You can also use both Liquid and Liquid Plus fertilizers in combination to adjust the amount of NPK or Fe individually to the needs of your plants.
Back to the overview