[jeojiang6]

well, thank you, i don't know what is wrong with the place i am living , the humitidy there is only 40-50%, so i make pitchers in a glass container use for fish, make it to be a "half-water-half-land" , so that the humitidy rise to 60-70%. however, when i put them in the sun , the humitidy came down again, what can i do to solve the problem? thanks first!