Try making an incubator out of two plastic boxes (about 1 by 2 by 1.5) and a 100 watt adjustable and submersable aquarium heater. Put the heater inside of box one, fill box one with water, put box 2 on top of the water and push it down so that the water rises up near the edge. I use a belt to strap box 2 in place (careful...water will get everywhere)....now let it run for a couple of days...adjust the temperature to hit just below 86 degrees (don't rely on the aquarium heater's thermometer...put one of your own in the incubator)...mine runs all day at 84-86 degrees...I don't let it go over 86 because higher temperatures drastically slow myc. growth. Good Luck!