It is as hardy, as the other wendtii types. It will often take time, before colour comes true, and colour is quite dependent of environment (also common with the other wendtii types). Some plants will go back to original, which resemble Mi Oya a lot.
- don't expect true "flamingo-pink", unless you really blast it with light, ferts and added, pressurized CO2.
In less than perfect conditions it's usually more of a mottled rose-brown light colour.......which is quite nice, too.