Common Tiger Salamander Health Issues

A tiger salamander eats whatever moves in front of it and spends most of its life buried in damp soil, and nearly every health problem the species runs into traces back to one of those two facts. Overfeeding, swallowed substrate, and skin kept too wet, too dry, or too warm account for most of what a vet sees.

Obesity

The most common problem in pet tiger salamanders. Many amphibians keep eating as long as prey is available, with no regard for what they need, and this species is one of the worst for it. An adult needs food only 2 to 3 times a week. Limit fatty feeders like waxworms and pinky mice, and do not keep feeding an adult on a growing juvenile's every-other-day pace. An obese tiger carries visible fat behind the head and legs and moves less.

Substrate Impaction

This species lunges hard at food and can swallow bark fragments or gravel with it. A salamander that stops passing waste, bloats, or refuses food after a feeding on loose material goes to a vet, because a blockage can kill it. Prevention is substrate choice and feeding from tongs or a dish, away from anything the animal could swallow.

Metabolic Bone Disease

A deformed lower jaw, fractured or bent limbs, a curved spine, and in late cases twitching and bloating come from too little calcium and vitamin D3. Dust feeders with calcium and D3 at every feeding while the animal is growing and every second to fourth feeding once it is adult. That dusting is a standing part of the diet, not an occasional extra.

What a Normal Shed Looks Like

A growing tiger salamander sheds the outer surface of its skin every few days to every few weeks, most often during growth spurts. The salamander normally eats the shed skin, so most keepers rarely see one, and a salamander chewing at a loose film of skin is doing exactly what it should. What is not normal is stuck shed, skin that stays attached in patches instead of coming away. It is one of the common problems vets list for pet salamanders, and it points first at an enclosure that has dried out below the 70 to 75% humidity this species needs.

Skin and Bacterial Infections, Including Chytrid Fungus

Red or discolored skin, ulcers, shedding far more often than usual, a change in behavior, and appetite loss all point here. Appetite matters most in this species: a salamander this voracious that turns down food in a warm enclosure is not being fussy. Causes are poor hygiene, substrate that is too wet or too dry, an enclosure above about 78°F, or a pathogen brought in by an animal that was never quarantined. A new salamander spends 6 to 8 weeks in its own tub before it goes near another amphibian, the window laid out in the amphibian quarantine guide. Always see a vet for skin signs.

Parasites

Intestinal parasites arrive with wild-caught feeders and with animals of wild origin. A fecal exam during quarantine, and again at the yearly checkup, catches a load heavy enough to treat.

The Vet Visit

A tiger salamander should see a vet once a year, and the vet has to be one who treats amphibians. Many exotic practices see reptiles and birds but rarely a salamander, so ask directly how many amphibians the practice sees and whether it runs amphibian fecal exams. The Association of Reptile and Amphibian Veterinarians keeps a searchable directory of member vets, which is the fastest way to find one before an emergency. Signs of a healthy animal to confirm at that visit: clear eyes that are neither sunken nor swollen, intact skin with no ulcers, a good appetite, and an alert response when the enclosure is opened.

The Husbandry Pattern

Overfeeding, especially with fatty prey, drives the obesity at the top of this list, and measured meals prevent it. Loose, swallowable substrate causes impaction. Skipped calcium causes bone disease. A warm room and a dirty enclosure open the door to skin infection.

Unlike the axolotl, which stays fully aquatic and gilled its entire life, an adult tiger salamander is terrestrial and burrowing by the time most of these problems appear, which is why its risk list runs to substrate and skin instead of water chemistry.

Sources & Further Reading