yes you can use the vho ballast i got the workhorse 7 and it handles 4 bulbs 54 watt each one and i think tha its bright enough to handle pretty much any coral thats what i heard from the pet store
here is my tank with t5 sistem is real nice i like how bright they
55 gal
are1yellow tang
1green chromis
1clown
1mandarin goby
blue leg hermits
turbo snails
1starfish
T5sistem for lights 4 bulbs
here is my 55 gal is 8 month old it was a fwlr only, until 1 month ago i put some corals
1yellow tang
1green chromis
1clown
1mandarin goby
blue leg hermits
turbo snails
1starfish
T5sistem for lights 4 bulbs