Hey, so I'm finally getting a Ball Python who will be a hatchling, and I will be keeping him in a 5L RUB to start, and gradually increase in size as the snake gets bigger. However I am unsure on how many holes I should drill ( I do not own a soldering iron ) and where I should drill them. I was thinking of following this guys' advice on holes, having three at the top on the long ends. Is this okay? https://youtu.be/g0UGjMamP-I?t=2m43s
Also, what size drillbit is recommended?