Leachianus Gecko genetics

Leachianus aren't traded on morphs at all. Eleven of the seventeen entries Morphpedia lists are localities — the wild population an animal's line came from — and that, not genetics, is what sets a leachie's value.

So what do you use instead?

A family tree. Record each animal's locality and both parents, and you can show a buyer the whole line rather than telling them about it. For a species traded on provenance, that's not a substitute for a calculator — it's the thing that actually carries the value.

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Why there's no calculator here

There are no proven single-gene morphs in leachianus, so there's no calculator here. Of the seventeen entries Morphpedia lists, eleven are localities, three are polygenic and three are type designations.
A locality is a place: Nuu Ami, Mt Koghis, Isle of Pines, Yate. It describes which wild population a line descends from, and it's inherited by pedigree rather than by any Punnett square.
That's why lineage matters more in this species than in any other on this site. A pure Nuu Ami is worth what it's worth because of what it descends from, and a crossed line can't be uncrossed. Once the paperwork is lost, the value goes with it.
So the useful tool isn't a genetics calculator, it's a family tree. Record each animal's locality and both parents, and you can show a buyer the whole line instead of telling them about it.

Localities

A locality is a place, not a look. It says which wild population a line descends from, and it passes down by pedigree rather than by any gene — which is why it can only be proved with records, and why a crossed line can never be uncrossed.

BayonnaiseBrosseCaanawaIsle Of PinesMoroMt HumboldtMt KoghisNuu AmiNuu AnaPoindimieYate

Traits no calculator can predict

MorphMarket Morphpedia classes these as polygenic or structural. They're real traits and they set prices, but they don't sit on a single gene, so no Punnett square predicts them. Anything quoting you a percentage for harlequin or flame is guessing.

Conley Dark MorphFriedel (Mt Koghis)Troger (Mt Koghis)GT Type AGT Type BGT Type C

What does work for these is records: pair the same two animals for a few seasons and your own hatch data tells you far more than any average could. That's what My Reptile Atlas is for.