Heating elements for heating the terrarium can be placed below or inside it. For heating, you can use incandescent lamps or heating cords laid under the ground.
When installing a heating system, it is necessary to create a small temperature difference in the terrarium so that the animal can independently choose a place where it feels best. You can use mirrored lamps for heating, which are sent to a place, and the rest of the terrarium remains outside the heating zone.
In order to avoid overheating of the terrarium, it is recommended to connect all heating devices through an automatic temperature controller.
A certain temperature regime is very important for the life of cold-blooded animals, since with a lack of heat they do not grow well, do not breed, often suffer from respiratory diseases. The heat is supplied to the terrarium using an aquarium thermostat. Under the heating device, stones are usually placed that have good heat capacity, providing heating of the reptiles from below for a long time after the heating device is turned off. Sharp temperature fluctuations in such cases are excluded. Part of the floor in the terrarium can also be made heated to maintain the desired air temperature.
Equipping the terrarium with heating sources, special attention should be paid to the insulation of the device to prevent burns and injuries in animals. As a heat source, you can use household incandescent lamps of various capacities, with a mirror coating, which provides the best warming up for reptile homes, infrared lamps IKZK-220-250.
To maintain a constant water temperature in the aquaterrarium for aquatic species of turtles or crocodiles, you can use an aquarium heater with a temperature regulator, which is completely immersed in water. It is advisable to place the glass case of the heater inside the stainless steel casing with holes, after having put on it several ringlets made of a rubber hose so that it does not break. It is necessary to position the heater at the bottom, preferably falling asleep with stones or fixing it with glue so that the animals could not damage it. It is not recommended to use heating cords for heating water, as reptiles can tear or bite them.
When cleaning the aquarium or terrarium, the heater must be turned off and then turned on again.
To control the temperature in the terrarium, you need to install thermometers, two are best: one for measuring temperature on land, the other in water. In no case should mercury thermometers be used, since animals can break them and be poisoned by mercury. You can use alcohol, which is safer, but the best option is liquid crystal, attached to the glass of the terrarium from the outside. Such thermometers are the most accurate, but they have a significant drawback. they are not moisture resistant.
The temperature in the terrarium in autumn and winter should be 18–24 ° C during the day and 16 ° C at night, in spring and summer 22–27 ° C during the day and 19 ° C at night. For tropical animals, the temperature should be the same day and night.
In addition to heating and lighting devices, there must be a ventilation system in the terrarium, since the lack of fresh air often leads to various diseases in animals.
Ventilation holes should be made in the walls of the terrarium and in its cover. To prevent the animal from escaping through them, it is recommended to tighten them with a net. The size of the holes should depend on what humidity should be maintained in the terrarium. If the terrarium is very large, with a volume of more than 1000 liters, conventional ventilation openings will not be enough, you need to install an exhaust fan.
Humidity in the terrarium should be 70–90%. Maintaining a high level of humidity in the terrarium is facilitated by plants and daily spraying. Also, to humidify the air, there is a bottom box in which water is poured.
The terrarium, which contains desert animals, should be sprayed with water once a day. At home, this can be done using a household spray.
A drinking bowl is a necessary element of the terrarium, further contributing to an increase in the level of humidity. Instead of drinking bowls, you can place a pool in the terrarium so that reptiles have the opportunity to swim. Water tanks should be installed in such a way that filling and draining are carried out without removing the animal from the terrarium.
A ventilation system is a necessary attribute of any terrarium. Air must not be allowed to stagnate in reptile homes. The oxygen supply is carried out using an exhaust fan or due to thermal convection. It is desirable that the ceiling and one of the walls of the terrarium be made of wire material or contain ventilation holes.