hi SwishaSweetz4Me if i remember correctly leaf curling is usually caused by too little or too much watering and looking from those pics the soil looks kinda dry. check to make sure the soil is moist (not dry or soaking). also a little information about your setup would be great such as what chemicals you use if any and the type of soil used etc. the more information you can provide the more peeps on here can help you.
hope this helps