i was watching this video in youtube showing about how to inspect RI in ball Phyton.

then i try it to all my snakes, and i found that every balls in my collection has it.

i'm curious about RI, if my snakes eating well, and i always check my husbandry, with hotspot 32C, ambient 28-30 (summer), humidity around 30-50%

but when i try to open the sides of the lips i'll find few small bubbles (around 3-5 bubbles), but my snakes didnt make wheeze, or clicking or popping sounds, and i couldn't find any goo on the side wall of the tubs.

so?? are my snakes got RI? or is it normal to have few bubbles when you pry open the side lips?