My male is a "Joliff line" Pastel and this is him at well over 2 years old, probably closer to 3:
I've never seen a "Joliff" website so I don't know where you would get one.
The female I recently bought has a wild-caught grandfather who kept his bright yellow until the day he died.
This is her at 5 months:
With every shed, she gets yellower and brighter.
I'm hoping that it's a trend she'll maintain for a long time since she's the intended "bride" of the Joliff male because they should produce some really nice supers and pastels.![]()