I posted before about my daughter coming home with bed bug bites

I posted yesterday about my ex having a bed bug problem and a lot if people suggested helping him clean because men aren’t good at cleaning.
I will say he lives with his mom and his girlfriend on his mom’s live aboard boat, and the bed bugs have been a problem off and on.
When my daughter comes home she strips down and gets bathed immediately, and her clothes go in the wash as well. She doesn’t bring anything back & forth.
When I bring up the situation with him he completely ignores me.
I asked for help with this situation because I have 3 other children at home including two newborns and I can’t risk getting bed bugs at my home.
So if you want to be rude about it you might as well keep scrolling. No I do not want to take my daughter from her dad however something has to give with this situation.