hey i had the exact same problem with my 07 male pastel, i read a thread made by Corey Woods or a comment in a thread by him that suggests you boost the temperature to around 95F maybe even a little higher and just cook the breathing problem right out of em . . . . so i did this i boosted the temp on the hot side to about 95ish and within a day the problem was gone and he has been fine ever since, good luck hope everything works out!