I split from my son's father almost a year ago, and so far co parenting has been pretty smooth. However I'm starting to get a bit fed up with his parenting choices for him (our son is almost 2). For example he always forgets to brush his teeth and give him regular baths.
Our son will be in the same dirty clothes the whole day when I face time and more often than not our son is left in front of the TV for most of the day. He has him every weekend and pays me money for him monthly so he seems to think that is more than enough which irritates me. I recently found out that he gives our son fruit juice from a bottle rather than just plain water (combined with the fact that he is lazy with brushing his teeth) and doesn't ever read to our son or take him out. My son doesn't really have much structure at his house and is always tired at mine and all my hard work through the week is unravelled.
I don't want to feel like nagging but when I gently give him my opinion he gets offended and tells me to mind my business. How can I fix this and am I really being unreasonable to message him with reminders or outline why I'm upset?