Does anybody know how long this has left until harvest stardog?

[Stimpgrow]

8 weeks at the minute leafs are turning a weird colour 2 of the plants the fan leafs have turned yellow HELPPP!View attachment 1246131

 

[steamroller]

You're going to need to offer up a bunch more info for help .
Light % and height, hours per day [type would nice also] , Ferts used and watering habits, medium you're growing in , RH and room temp [ day/ night] .
Re posting your pic .

 

[Stimpgrow]

600w under 4 plants there around 2and half foot 12 hours per day MH using canna Flores in a flood and drain system feeds 2 times in light period also it’s in 60/40 coco + pebbles 50% humidity and night temp 22 day temp 30