Christmas Tree Rock lighting requirements

[fender316]

does anyone know if i need metal hallide for a christmas tree rock? how much do they differ from featherdusters?

[yellowtang]

Hello fender...........
If not mistaken xmas trees happen to be of the same
types of Colt and finger leathers...thus requiring
an abundant flow of light........
I had a colt before my tank crashed and I found that
PCs were good enough but MH brought out the best of him.
Keep in mind it was a 65 g tank...yours being a 20g only;.. PCs
should be suffiecient
also they require a bit of calcium and iodine for best results.
cheers.

[laffy]

if your putting it in your 20g like you tank list says, you don't need halides. these lights are just better at reaching bottom in deep tanks. if you put 2 65watt pc or t5 and have good flow, you'll see how good any coral will do in the tank under that light.

[fender316]

i got power compacts i wouldnt mind trying one out i got a nice little spot.  anyone got any frags?   i guess i should also mention i'm talking about the worms not the "christmas tree coral"