All plants are lovely and healthy, love the frostiness, greeness and the whole garden, we can surely see the love you've to your ladies, keep up the great work man. In regards to taking better pics with the lights on, Ran into the same probs with brightness. If you can change the Exposure to a darker setting that should fix the pics, hopefully
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Adding comment to the resuse of mediums, I resuse my coco about 5 - 7 times, just cut out the original stalk and plant the new clone, and they grow out better than if planted in new coco which has just been flushed and precharged with 0.4ec Canna AB, even with all the roots etc, as long as you have some organics in the coco and flush the medium from all salts before planting new plant, everything comes along fine.
Read on multiple sites that the reuse of soil and coco has better results than store bought soil and preflushed new coco, and it seems the case with my grows as well, i guess the truth is in the pudding
Peace to all, happy growing and stay safe.