Coraline growth

[McNasty]

Just wondering what some tank and lighting specs are and Coraline growth every one has.

I myself can not grow coraline in my main tank.

Lighting consists of

4 t5
1 400 w 14k MH
1 175 w 12k MH

tank size 90 Gallon

Calcium 475
Alkinity 4.5 Meq
Magnesium 1325
PH 8.2

Now in my refugium , also close to my skimmer i am lighting with daylight compact flouresent bulbs and coraline grows fine.

Can you have to much light for coraline growth?