20k bulb turning white???

[Mojo Jojo]

Running a Coralvue 20k bulb on a Coralife HQI ballast. First two hours it burned crispy blue. Now its burning in white:( . Anybody experience this?

[Rosseau]

Not with that bulb specifically. However my 14K did something similar.

They definitely have a break in period where the colours change around a bit.

[Mojo Jojo]

Rosseau - Did the bulb ever get its blue back? Mine is staying white like a 10k bulb. Its a really nice white, but where is my blue???:(

[NealNano]

How old is the bulb?? If it is old I will turn to a yellower spectrum. If it is new 20ks will be very blue for the first few days of use. After a while they become more white. This is normal dont worry.