T5 pendant

[jaquesdp]

hey, i have a T5 unit that takes 8x 39 watts.

what is the best configuration of lamps for it ? 12k 10k atnics ??

does atnics help with coral growth or only to make them look nice ?

[aquaman67]

Color is a personal choice. I like a bluer look.

Corals use 420 nm light (actinic).

There is big t-5 thread that might give you ideas. But what others think looks good, you may not like.