Good product but be careful with the dosage.

As has already written someone should really not dispense too much.
I have a 120L tank is the bottom 98% densely planted with many fast-growing and even red plants and I proportion daily inaccurate 1ml, recommended are about 1.5 ml / day in the normal dose recommendation but this is too much and fuels the algae and by the Hochen iron content cloud the water and thus the plants no longer bubbled (Assimilated).
One should really rantasten very slowly and at first rather clear dose too little rather than too much, and are based on the rooting of the plant because with strong rooting lacks nutrients and barely rooted plants enough nutrients are present.
In addition, you should not change anything else like lighting duration or water values ​​because the plants need to adapt to the altered conditions sometimes 1-2 weeks.

Here is my water values:
PH: 6.5
Co2: 35mg / L
KH: 3
GH: 5
Water change: 60% / Week

On Flowgrow in "aquariums" you can go to my pool "Summer in Winter" Search and take a closer look.
Or use the link: [...]

Regards
Sebastian