I've been using the foam humidifier that came with my humi. I've read that the floral foam style can have more mold problems. My question is whats the best humidifier to use? And where should I get it from? Humi is only a month old so I have some time but I would like to start looking. Thanks in advance. Also both the humidifiers that came with my humi are mounted on the tray on both sides of the hygrometer. Its only a 150 ct, do I need humidifier iin the bottom or will it be fine? FYI all sticks have been great other than a horrible trinidad that had many issue! Am I just being paranoid?