the leaves on plant 3 are starting to curl up on the sides a little bit...

my temps are a little high at 88 right now.. and the plant is 22" away from the light. i originally used MG soil but then when i repotted i switched to scotts soil with 40% perlite added to it. when i repotted i threw a pinch of bone meal into the soil and mixed it up good,, if im forgetting any other important details let me know..

anyone know why my plant is doing that???

edit: is the same plant as the one above with the quarter...