Advertisement Hi. I want to build a Paludarium which has the total size of 120cm x50cm x50cm(length x width x height) A Paludarium is a Aquarium and a Terrarium combined. Most of the Paludarium will not be water tho. The transition to water and earth will not be rapid but rather slow. My question is are the Millipedes "smart" enough to see that if they go deeper in water that they will drown? I was searching the whole internet for the past 2 weeks and i couldn't find any answer to my question. Im also sorry for my awkward english , i hope you people can understand what im trying to ask.