Tyga Posts Video of Son King Cairo Next to What Looks Like Weed

Tyga posted an adorable video of his son King Cairo playing in his living room ... problem is, there is a pile of what looks like marijuana right smack in front of the boy.

The 3-year-old is within arms reach of the green pile, which sits on a coffee table next to a package of Swisher Sweets cigars people typically use to roll blunts.

Tyga and baby mama Blac Chyna have been in an on-again-off-again custody war over the boy, and this can't help Tyga's cause.

We reached out to Tyga's lawyer for comment and got no response ... but after we placed the call Tyga removed the video from his Snapchat.