Terrdrakon NPK balls aquamax
Long-term fertiliser balls for all aquatic plants
For targeted top-up fertilisation in an established aquarium
- With valuable, air-dried clay from Sri Lanka
- Filled with high-quality NPK fertiliser (nitrogen, phosphorus, potassium)
- Contains numerous minerals such as the important iron
- Ideal for all aquatic plants that require nutrients
- Each individual ball is carefully handmade
Clay balls as fertilisers were already known in the pioneering days of aquaristics, but were then partly forgotten.
The plants drive their roots to the clay balls and obtain the necessary nutrients directly from the clay balls. Terrdrakon NPK fertiliser balls. The rather impermeable clay prevents the fertiliser from being immediately released into the environment and the aquarium water. Nitrates and phosphates in particular remain where they belong: with the plants!
Application
1 - 3 Terrdrakon NPK balls into the substrate next to or under the plant to be supplied, depending on the size of the plant. The aquarium plants will root through the balls after a short time. The balls can also be distributed evenly in the substrate when setting up a new tank. Please do not use more than 3 - 4 balls per 100 litres of water.
Top-up fertilisation is necessary every 3 to 6 months, depending on the growth and quantity of plants.
Please put the balls into the soil as soon as possible. They are not intended to be left in the water for a long time, as otherwise they will soften, dissolve and can then no longer be placed in the soil. The removal of the remains of the balls is then also associated with quite a lot of effort.
Composition
Clay is a natural product and essentially consists of swellable layered (alumino)silicates (molecular formulae in varying proportions: SiO₂, Al₂O₃, Fe₂O₃) with ion exchange capabilities.
250 mg NPK fertiliser per scoop: 14 % N (5.5 % N nitrate nitrogen; 8.5 % N ammonium nitrogen); 7 % P₂O₅ neutral ammonium citrate-soluble and water-soluble phosphate; 17 % K₂O water-soluble potassium oxide; 2 % MgO magnesium oxide; 0.02 % B boron; 0.01 % Zn zinc.
* Plant growth depends on several factors. Basically, a plant always needs all growth substances in sufficient quantities to thrive. Even if the water is well fertilised (see my other offers), plants will show signs of deficiency and stagnant growth if the nutrients are lacking in the root area.
Contents
e 48 g (10 balls)
Saarstr. 13
73431 Aalen
Germany
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1 - 10 of 17 reviews
4 December 2025 06:02
Perfetto per le radici delle
Perfetto per le radici delle piante, ottimo prodotto ho provato altre marche ma questo é migliore
22 September 2024 10:03
Best root fertiliser
I have been using the NPK balls for 1 year and I am thrilled, my echis look great, strong colours, strong roots and very good growth. 5 stars from me.
14 June 2022 08:01
Perfect addition for the root areas
"Every 6 months I fertilise the root areas of the plants that need it with the NPK & SE balls. Overall, I fertilise sparingly, i.e. a little less than indicated on the instructions. Aquariums here run without CO2, lighting not too bright (also because I beautify the water colour with fulvodracon). Has been running for years.
PS: My sand, 0.4 - 1.4 mm grain size, otherwise remains untouched, I only remove larger quantities of visibly coarse mulm on the surface.
1 May 2021 14:01
Just like in the early days of my aquarium time
I used to make these balls myself from clay and fertiliser to save pocket money.
Today, and even in the absence of clay, I am very pleased with the product. I mainly use it on an Echinodorus "Osiris double red" and we enjoy a new leaf on this plant every week.
12 April 2018 14:20
Product is excellent...
Product is excellent
18 September 2017 16:56
Super for tiger lotus and indi...
Great for tiger lotus and Indian water lily. Both show great growth thanks to the balls.
19 April 2013 11:07
Fertiliser balls for top dressing when the...
Fertiliser balls for top dressing when the laterite fertiliser in the substrate is running low. Pleasant size, easy to use.
15 April 2013 10:25
Use these fertiliser balls for Echinodorus...
I use these fertiliser balls for Echinodorus plants and am very impressed with the product after just a short time. Plants grow noticeably better.
13 April 2013 14:08
A very good fertiliser...
A very good fertiliser
9 April 2013 16:09
Very good for upgrading the substrate...
Very good for upgrading the substrate
The aquarium by H.G. from Wächtersbach
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