oh yes.. good call cnd... I see the burning NOW!

Hey salt,

the tips curling and the tips birning is a sign of over FERT..
Can you transplant her.. VERY gently... into a slightly larger pot.. like a 3 gallon pot.. add about 20-30% perlite to the mixture..

then water thouroughly with distilled water...

I think this will help you a lot..

: )