Leopard Gecko Cages, Capacity, and Colony Mix
A ten gallon aquarium can house one to two geckos, while a twenty gallon aquarium (choose long aquariums over tall ones, already if they have the same capacity) could house anywhere from two to four leopard geckos, all the way from hatching to their adult size. The exact number will depend on the temperament and territoriality of the individual lizards in your cage.
Don’t make the mistake of assuming bigger is better and get one that’s too big, however. The size of the tank could make it hard for the geckos to find their lying spots and hide boxes. Larger cages are nevertheless generally better than smaller ones, and will provide a better temperature gradient. Just don’t overdo it.
Leopard geckos can be kept alone or together, and will not experience distress if kept by themselves. Groups can be a problem in the wrong combinations, however. Males often fight when housed together, and females sometimes do.
Males may be housed with females, but these lizards copy freely, which may be a stressful situation if there aren’t enough females. After all, egg laying throughout the breeding season can take a important toll on the health of your females.
If you plan to allow your leopard geckos to copy freely, house a single male with more than three females. This will prevent the females from excessive stress and exhaustion from egg laying. Remember that breeding geckos will require greater nutrition supplementation than non breeding ones.
Sometimes, in a group cage, one gecko will grow larger and more quickly than the others, out competing them for food. If this is the case, the smaller cage mates will be undernourished. To prevent this, separate the largest animal and see if the situation improves.
Some leopard geckos are aggressive enough to need to live alone for the entirety of their lives. As these are not naturally social animals, the gecko will not be harmed by this kind of living situation. Groups of females usually do well. They do sometimes fight one another, but this is much less shared than it is with sexually mature males. Be ready with an alternate housing solution if any of your lizards become aggressive, however. Some leopard geckos just aren’t made for a communal living situation.
Remember that already if fighting doesn’t happen early in life, it may begin once your geckos have reached sexual maturity, as this is when they are most likely to become territorial. Large geckos should usually not be housed with smaller ones, due to their inclination to bully their younger cage mates. When introducing a new gecko to an established tank, be certain to include in quarantine procedures for one to three months, caging the animal separately.
This ensures that your new gecko doesn’t have any health problems that might be spread to the others, such as a serious disease. Never house your leopard gecko with other animals, including other species of reptiles. The chance of injury or one animal eating another is too great, and already if things look fine at first, you never know when something unfortunate could happen.