Aggressiv behavior

[CloudtheBoa]

I have found the couple times my ball python has gone striking at me was right after a fast after he started eating regularly. Both times he's stopped within a couple weeks. Seems like your ball was just hungry and the increase in food has sparked a strong feeding response.

Just in case it's something else, double check husbandry, and just be ready to deal with a defensive snake that may need time to work with.

I also agree, space out his feedings, I personally don't go below 7 days for any snake eating rodents.

I want to point out large enclosures do not stress snakes out, big open spaces do. Once the snake is settled in, there's no harm in moving him to a larger enclosure so long as you offer enough hides and cover. I put my ball python in 4.5'x2.5'x3' roughly sized enclosure straight as a hatchling, he ate quite reliably and was really chubby (it wasn't until I made my first move in 2012 he started being a trouble child), and I've even kept him successfully in a 6'x2'x3' enclosure as an adult at 3.5' and 1,380 grams. Went in it in the middle of a fast, and started eating again within a month or two.

That said, I would not make any changes in his housing until he's settled in, so not for at least 3 months, he'll be fine in smaller set up temporarily.