Welcome to the forum!!
I'm no genius with this stuff, but if you got reflectors and just mounted the new clips where the current ones are then it should work.
If it were me I'd be looking for at least 6 t5 retro kits with reflectors. Don't forget to get good bulbs too, no need to skimp on them, they can make a world of difference.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.