I do not have any media in my sump, all filtration is external
As I am using 2 grades of sand, I only have a horizontal panel to separate them
I am using my own hybrid MSB (medium sandbed), macroalgae, power skimmer combo
Current plans:
Change my lights to 150w BLV 10kk bulbs
Mod the FLs on the fixture to 2x54w T5 blue (still researching on brand)
Hopefully, these will give me enough PAR with a pleasing colour