My leaves are curling, mainly the tops, but there is no discoloration. Other than the curling they look healthy. Is this heat stress?? No pictures right now but I will upload some when my lights go off.
Mate I asked this exact same question a few days ago, same watering schedule.
I think like me you have been overwatering.
No more water until you can get pics on. The thing won't get thirsty for a week unless in a desert so don't worry.