WRGB II Pro 60 is too strong for your tank size 60x35x35cm.
You can start at low brightness and end around 60%-80%.
Light Intensity
Red 20%
Green 20%
Blue 10%
White 15%
Add about 5% 1-2 weeks for growth.
Photoperiod
6h/day is good for now.
You can increase to 7–8h after 4–6 weeks if no algae appears and plant growth is healthy.
CO2
Start CO2 at least 1 hour before light on and stop 1 hour before light off.