Complete son all day and high80sWhat kind of soil/medium do you use? Watering once a day sounds too frequent. I use a super-light/airy soil and it takes 2 days to dry enough to water. I can't imagine anything drying enough in one day (except, maybe straight perlite).
I think the leaves look like waiting too long to water (too dry). But, as mattyice said, they should bounce back within 20 minutes after watering. If they don't, then it must be too wet. Or, maybe root rot? I've never had that, that I know of. I've read that you can smell the soil for it. But, don't now what it should smell like.