What layer do Nymphs spawn on?

The internet is full of inconsistent tips about Nymph farming. So here's an easy one.
Do Nymphs spawn in the underground layer or the cavern layer?
Best Answer
Nymphs

Nymphs are rare enemies that spawns as a Lost Girl the first time you see it. The spawn rate is 0.6% in Pre-Hardmode and 0.1% in Hardmode.
They are found in the Caverns and not in the Underground.
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How do you get nymphs to spawn?
Minions will attack the Lost Girl before it has turned into a Nymph. After a player kills a Nymph for the first time, Nymph will spawn much more commonly after, especially on Mobile ports, as she can spawn in the underground sometimes.What is the easiest way to get nymphs in Terraria?
I found the easiest way to find nymphs. Just create a new world preferably in expert mode, since this the drop of the metal detector is 100%. Dig up the layer of caves in the ice biome with the help of the item that detects rare enemies and hunter potion.How do I get a metal detector in Terraria?
The Metal Detector is an informational accessory which informs the player about valuable objects, such as ores, chests, or Life Crystals, in their vicinity. It has a 50% ( 100% ) chance to be dropped by the Nymph, a rare cavern enemy.EASIEST WAY TO FIND NYMPHS! (Metal Detector) - Terraria 1.4 (Read Description)
More answers regarding what layer do Nymphs spawn on?
Answer 2
Found in ice caves at cavern level. Better chance in pre-hardmode. To make a good farm in pre hardmode make a basic mob grinder but make it that you can walk through it and do not forgot do this 50 blocks above stone layer. Good Luck! PlanteraKiller
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