No not all the way through....just a black lil half a pinky finger nail sized. No mold at all....but there was a lil bit of white....on the bottom of the hole...plant still looks good....and since its only 4 weeks and its a sativa dom...I know it has at least 4 more weeks to go. Hopefully the pictutres will help. I did pull the white off. Flushed it down the toilet....not much was there though ...Pics will be here tonight...and thanks for the help