Can you elaborate more on how that light worked for growing corals?
Im looking to turn a fluval ebi into a nano reef and that's one of the three options Im considering for lighting it.
I'd say try it, see if it works. If it doesn't, then you'll have to upgrade. No point upgrading now though if you don't have to.
If that light turns out not capable of growing a carpet though, the light that comes with the fluval ebi, the fluval pcl13 I think its called, it grew a dwarf hairgrass carpet in mine pretty decent without co2 or ferts. You can get them on amazon if you're in the USA for like $30. $50 if your Canadian like me.