I see which one you mean Elaine, I'll have to take a look at it tomorrow. It's not in direct sunlight, there are some parts of trees overhead when they're leafed out and I have the Orchid tables on the west side. When I have everything out of the other greenhouse my Angel Trumpets provide some shade also. I'll remove that leaf and go through and remove the other ones that are dead. I can't remember the name of the orchid food I use but it comes in a little bag and you mix a teaspoon with a gallon of water. I then use a watering can to water the orchids with it once a week. Then the watering can get soaked in my bleach water solution. I haven't noticed a reddish tinge like on my Oleander I'll have to look tomorrow. Should I add a small bit of Epson Salts to the plant food like I did the Oleander?