radio shack might still carry them .and on the humidity you may not want to lower it much more than 50,i believe females thrive better with more of a higher percentage of humidity like the real outdoor condition in the summer wind,rain,humidity, imho a male developes in stressfull outdoor conditions like low humidity , or too high ,lack of moisture,light ect. i believe when they develope into male pollen seeks the females in a more kosher enviroment to pollenate the females which are better conditions and less stress to have there offsprings.