So I water a little bit ever other day, sometimes daily if they're dry enough. In the last 2 days, they've gone from nice looking and strong to this. I didn't ph the last 2 times I watered, and when I checked my water, it was over 8. Like more 8.5. Is that what caused this? I've moved my light way up, I feel like there's no way I could be overwatering anymore, the more I think about it. So the ph is the only thing left I can come to. Please help.