yeah don't flush, flushing is retarded it doesn't make it anymore harsh or taste any different, I normally give my plain water the last 3 days but other then that no actual flush, taste comes from curing.
But your plants look good and frosty but don't look like they have been growing for six weeks, they look pretty early, they look they have an easy 4 weeks to go, If you don't have a scope I would get one, I almost pulled a bunch of my plants because they looked done and scoped them and they still had a few weeks to go, if you pull it early you will lack everything including the high but not only that but you will lose a good 20-30% of your yield comes in the last 2-3 weeks. Happy growing and good luck.
Next time I would also not keep the lights so high if that was the case or the type of light you used because it has a ton of stretch, it looks like my plants I started flowering when they were only six inchs tall, they will be done in a few weeks
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