Ping Pong and puzzles

ping pong of course being the weather, 20 one day, 40 the next. The mint and valerian are doing well if you cant see the phone photo clearly.

the puzzle is lemon balm. Seems that the seed stock I have is succeptable to damping off. I have started it twice in the aerogarden and both times it has turned belly up a few days after sprouting. This to me makes little sense. I thought damping off was a soil born infection, wouldn't hydroponics by definition not allow for such a thing. Second, the aerogarden uses a single water reservoir for all the growing pods, so everyone shares the same water. But I have started a half dozen other seedlings during the same time, and none exibited any signs of damping off. No batch had any of the same species of seedlings, to avoid the possibility that perhaps something was antagonizing it. Even stranger still, chamomile was in the mix this time around. Chamomile tea is supposed to be a preventative for damping off, so I figured on a whim it might have some kind of positive effect. Nuthin, nada, zip. After a few days (I am still amazed with how quickly perennials germinate in this thing.) I see green baby leaves emerge, then die, then another seed germinates, wilts and dies and so on. I have started a couple seeds in sterile mix to test, but if those go belly up too then I am thinking that the seed itself is the culprit. If so I'm sure the company will give me a refund, but I'd rather have a Lemon Balm seedling. Oh well, a friend has offered a cutting if it doesn't work out.