first, make sure u are 100% getting a Fire or Enchi. don't be burned again and get something like a female Desert that might look Fire or Enchi.
it seems u wanna add the glow and blueness of the Ghost gene to future clutches. do u know the pairing(s) that produced the animals that u are looking at and what % het Ghosts they are? do u already have or plan on getting other animals that produce the visual Ghosts u want? beyond that, Fire brightens up colors and distorts some patterns. Enchi cleans patterns and highlights some colors. it depends on your preference really.
Edit: for example, i know u have a Spider. which combo would u like more? a reduced Stinger Bee (Enchi Spider) or bright Fire Bee?
or if u just wanna add Ghost to everything without the colors or pattern - it would just better to get a single gene visual Ghost.
I have a female pastel ghost, female normal ghost, male vanilla yellow belly 100% het ghost and male spider het ghost orange ghost. The fire and enchi het ghosts are in question. But regardless of being het or not, just curious and wanting opinions on which will the x in sexy. And i did not know that enchi reduces. So i am now leaning towards enchi for sure