Got mine in December. It has encrusted the plug fully now and has little nubs starting to form.
I'm running eBay full spectrum Well Par 165watt x2 for my middle two units. Then ocean revive S026 on each end of tank. So four LED units on a four ft tank.
Not sure PAR, getting just over 100,000 LUX at water surface.
My alk runs around 8.5-9
I think too it will be fast grower.
I'll try and take another pic. :confused: