Product: Prodibio Bio Vert 12 ampoules
The growth of the plants need trace elements, particularly potassium, sulfur, manganese and especially iron.
In nature, water currents have them of course but in the middle of the aquarium is closed out quickly.
If any of these trace minerals is lacking this leads to lack of trace elements, especially of iron which holds a very important role in the production of chlorophyll and photosynthesis, "Law of the minimum."
BIOVERT is recommended when the plants grow bad, yellow, decompose or become transparent.
BIOVERT gives your aquarium all the trace elements which your plants need to grow strong and healthy.
In particular, the bivalent iron and directly comparable.