Rehoming a Leopard Gecko: What to Pass On to the New Owner
Care routine details
Write down the current feeder insects used, feeding frequency and portion size, and the supplementation schedule (calcium with/without D3, multivitamin frequency) — an abrupt diet change on top of a home change adds unnecessary stress.
Environmental specifics
Note the exact warm-side and cool-side temperatures the gecko has been kept at, plus humidity, so the new keeper can replicate the same conditions rather than guessing and risking a jarring environmental shift.
History that matters
Share the gecko's known age (or best estimate), any past health issues or vet visits, and general temperament (calm, flighty, food-motivated, still settling) so the new owner has realistic expectations from day one.
Easing the transition physically
Sending along a familiar hide, some existing substrate, or other used décor gives the gecko a scent-familiar object in the new enclosure, which can meaningfully reduce the stress of an otherwise abrupt environment change.
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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.