Jbl The 7 13 Balls - Aquarium Fish Tank Root Fertiliser Tabs

Long-term root fertiliser for freshwater aquariums Specially made clay balls loaded with nutrients Important minerals through iron, potassium, other trace elements Optimal, precise supply with all vital trace elements 1 pack: 7 + 13 balls, 20 fertiliser balls, depending on the size of the plant, press one or more balls into the plant area once a year