Substitute for Grobo Nutrients Bottles

We are living in a country where it is almost quite impossible to clear Grobo Nutrients. We have to find substitutes of these 5 boxes otherwise we would not able to use our Grobo :frowning: after finishing the ones it comes with Grobo.

Is there any idea?



Bottle 1 and 2 is easy it’s just ph up and ph down.

Bottle 3,4,5 is going to be hard to dose but if I was in your shoes I would do this.

Do a drain / fill

Manual add your cal/mag first then add your base nutes of choice and let Grobo adjust the ph for you.

I know this is not the answer your looking for 100% but it’s the only way I think you can do it unless support will to direct you with a substitution. But I don’t think that will happen


He is right… worked for me