33 gal hex fowlr

whats the wattage of lights that i should use to get some purple growing and were do get it cause hex tanks dont have too many options when it comes to lights

 

i would say 3 wpg, a good actinic spectrum bulb with it, also on of the purple/pink ones bulbs. coraline likes lesser light then most corals, i dont know the dimensions of the hex, but i always get the best growth under flouscent bulbs not halide(too bad halides would be the easiest fit too). so i would recommend either t5, vho(dont know if they still make these), or pc.
do you know your dimensions it might help more

 

+1 on Dr Fragenstien for me

MH lighting is often the best option in these odd shaped tanks

Steve