So I had been out of town the last few days. When I got back I noticed that one of my plants wasn't looking so good. It's a 3 year old seedling, it had lots of healthy looking leaves last week. Yesterday most had fallen off and the ones that remained were yellow with brown spots. I removed them. I also noticed the soil was real wet it was in straight cactus mix. I repotted it and checked the roots, they appeared healthy, and the stem is still thick and firm. I'm thinking it wAs in a bad spot, got too much water and the cool night temps the last few days ( low 50's) are what caused the issue. Just seeing what you guys think. Sorry no photo right now

I also need to try a new soil mix. I used to live in southern Utah and with 110 - 115 temps and virtually no humidity, I couldn't use a super fast draining mix, but straight cactus mix has served me well. All my other plants are doing well.

Thanks

Trevor