i’ve recently begun hydroponics in a small way with aerogarden type setups. Lettuce and tomatoes did great as did coleus and moonflower vine. But most of the flower seeds I planted 9 days ago came up but then just sat there. Virtually no roots at all or growth. The stems are spindly and overly long, droopy. Does this sound like damping off? I washed the water reservoirs with bleachy water to hopefully sterilize before I replanted with new pods. No idea what to do next to prevent this from happening again. TIA.