Here is the Dutch brand of mineral or organo-mineral fertilizers and fertilizers, Plagron.
Recognized for their reliability for over a decade, Plagron has developed excellent products for hydroponic environments, such as bi-component fertilizers (in 2 parts), Hydro A+B, the economical Pure Zym, the efficient Sugar Royal or the famous Green Sensation...
The best prices on Plagron are at Culture Indoor.