<span class="link_user">@majinglue</span>, thanks your comment!
yes. lower leaves are turning yellow. I think it was underwartering for a few days.
it needs more frequent watering...
Great budget tent. No light leaks and any small ones you make can be simply covered up with black duct tape. Has survived 4+ runs with no signs of dying yet.
Really impressed with this product. It takes what takes me 24+ hours & shrinks that into a simple 15 min time frame.... Will definitely be grabbing more.