Seedling got holes on leaves and middle of the leaves turn slightly yellow.

well. first grow is alot of excitement and fear too. But have alittle trust to mother nature growing aseedling is like: less is more watering 20 ml light very weak of far away no nutrients high humidty good draining MJ soil, only light preffertised and additonal alink to agood site to calm https://www.growweedeasy.com/ and back to the seedling, maybe you were pulling on the shell of trying to take away the protecting skin,, whatever, maybe you hurt her by yourself BUT... Hemp is very resiliant , as long as it dont spread..... dont worry happy monitoring