Its a possibilty seeing as I ferted the other day, the soil they are in should provide food until they have completed flowering. But yellowing of the leaves either means overfert or not enough magnesium i heard? (EDIT: Hence I figured it was a deficiency and ferted)
Some of my plants seem to be doing A- OK and its just one or 2, where the new life is yellowing, but its working from down to top
I really wanted to avoid flushing but perhaps its the best thing to do, I'm going away for a couple of days for the weekend and the plants will be solo for 2 days, so I'm a little concerned.
The pots are only 7 litres, I know that near the end of my last grow they were getting rootbound, so that's not a real concern at this moment in time i would of thought?