I bought two scheffleras from a grocery store a few days ago. I've never had this type of plant before, so I'm unsure of what is normal for it or not. One seems to be doing better than the other. The one in question might be due for a repotting since I can notice some roots poking through the bottom. I plan to do that asap. What I'm concerned about is if I'm providing enough light and water so far. There are a lot of healthy looking leaves that are falling off. Temperature in the house is set at 80 F. There are some yellowing on the edges of certain leaves and black spotting in others. What could be the cause of this?