Leopard Geckos and Salmonella: Hygiene Guide
Why reptiles carry it
Salmonella can be part of a reptile's normal gut flora without causing the animal any illness, which is why any reptile — not specifically leopard geckos — carries some baseline risk of shedding it in feces.
The core precaution
Wash hands thoroughly with soap after handling the gecko, cleaning the enclosure, or touching enclosure decor and dishes — this single habit accounts for most of the real-world risk reduction.
Extra care for higher-risk groups
Young children, pregnant people, the elderly, and anyone immunocompromised should take extra care with hand hygiene and generally avoid kissing or close facial contact with a reptile, per standard public health guidance for reptile ownership.
Keep husbandry areas separate
Avoid washing gecko dishes or decor in a kitchen sink used for food preparation, and don't let the gecko roam on kitchen counters or other food-prep surfaces.
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A single adult leopard gecko needs a 20-gallon long tank as an absolute minimum, with a 36x18 in (40-gallon breeder) footprint now considered the recommended standard — plus a secure lid, an under-tank heater on a thermostat, a thermal gradient, at least three hides, and a shallow water dish.
Set up in this order: substrate, then heat source wired through a thermostat, then hides and water dish, then decor — and run the whole enclosure for at least 24–48 hours to confirm stable temperatures before your gecko moves in.
Hatchlings can start in a 10-gallon tank or tub, juveniles do well in 20 gallons, and adults need a 20-gallon long as an absolute minimum — with 36x18 in (40-gallon breeder) now the widely recommended standard, not just an upgrade.
Heat a leopard gecko enclosure with an under-tank heater and/or overhead heat source (halogen or deep heat projector) wired through a thermostat — a thermostat is mandatory, not optional, and heat rocks should never be used.
Leopard geckos can survive without UVB using dietary D3 supplementation, but current husbandry guidance now recommends low-level UVB (roughly 2–6% T5) as best practice — it improves D3 synthesis, bone density, and natural behavior, and views on it have shifted significantly from older nocturnal-species advice.
Keep ambient humidity around 30–40% across most of the enclosure, with a dedicated humid hide raised to roughly 70–80% to support smooth, complete sheds.