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- Mostly BIG fish and some coral. ~80g Nuvo- My coral tank with "happy fish"~ 90g- FOWLR Not the not happy type of fish~ 125g- Freshwater Malawi Cichlids ~10g- Nuvo- The refugees from the Ich of '18