Housing

The optimum enclosure for a Leopard Gecko is a 20 Gallon Long tank. What the long means is that instead of being tall like regular fish tanks, it is longer intead to creat more floor space. If you are housing more than one Leopard Gecko in a tank you must take into account that you need to add 10 Gallons per Leopard Gecko.If you are housing geckos together ensure that they are very close in size and be prepared to house them seperately should they being to fight.. A larger gecko will dominate a smaller gecko which will cause stress and possibly even death. NEVER house two males together, they will fight to the death. If you house more than one gecko together you must pay attention to things such as bite marks. tail loss, or weight loss. All these things could mean that one of your Leopard Geckos is being bullied. It may seem minor at the time but it could lead to much more and much worse.

As mentioned beforehand, the most common terrarium used for Leopard Geckos are glass tanks. In each enclosure there needs to be two hides for each gecko. There will need to be one on the cool side and one on the hot side. Your "warm" hide should be open on the bottom so that the Leopard Gecko can get the proper belly heat needed for digestion(will discuss this more later). Your moist hide needs to be on the cool side to prevent humidity buildup, too much humidity could cause respiratory infections. My moist hides are ziploc containers filled about halfway with sphagnum moss. I cut a hole in the lid and mist the moss whenever it begins to dry out. The moist hide is there to aid in shedding and gives them a place to cool off if they get too warm. A shallow water dish should be place in the enclosure on the cool side as well. I use clay planter pot bottoms because they are shallow enough even for hatchlings. You will also need to provide a small container of calcium for them to lick at as they feel they need it. I use Gatorade lids, water bottle lids, anything like that for this and it works great. When a gecko senses it needs more calcium, it will lick the calcium as much as is needed. 
         

                              20 Gallon Long Tank                                                                      Lid For Tank

Substrate

All pet stores will tell you to put your Leopard Geckos on sand, this is an error, in my opinion. The worst is the calcium sand because it encourages the Leopard Gecko to eat it becuase there is calcium in it. The Leopard Gecko can not digest sand. This can lead to impaction(constipation) which if not taken proper care of can lead to grave illness. I personally suggest paper towels for my hatchlings or any gecko that I am putting in quarantine and Peel and stick tiles for a more permanent enclosure

.                                                                                                                                                                                                        

Slate Tile                                                       Peel and Stick Tile                                        Paper Towel 

Temperatures

Since leopard geckos are considered crepsecular(most active during the late evening and early morning), you will not need any special lighting of any kind.  For heating, you will need an under tank heater, heat cable, or flex watt. Leopard geckos need the under belly heat to aid in digestion. Position your heat source under the tank on one end as to provide a heat gradient. It should cover no more than 1/3 of your tank. Your heat source should be plugged into a thermostat at all times, and the thermostat probe should be on the surface of your substrate, under your "hot" hide. The temperature on the surface of the hot side should be between 92-95 degrees.  Heat rocks may sound like a good idea but it is very common that reptiles get burned on them. 

              Heat Cable                                       Flex Watt                                                           Under Tank Heater

Feeding