ðeɪ ɹᵻkwˈaɪɚ sˌʌm spˈeɪs bᵻtwˌiːn ðə tˈɑːp ʌvðə wˈɔːɾɚ ænd ðə tˈæŋk kˈʌvɚ fɹʌm wˈɪtʃ tə ɡˈʌlp mˈɔɪst ˈɛɹ.
They require some space between the top of the water and the tank cover from which to gulp moist air.