Viparspectra 300W Grow light

[lapin]

I dont normally start s.... but I just purchased this light to hang over a 20 gallon remote fuge. Anyone using it? If so how high above the water level? What are you growing? Red, green macro and what type?
Thanks in advance.

 

[tdileo]

I used to have one, had it about 6” above the water because of limited space under my stand and I had to turn it way down because it would cook everything running 16 hours a day. Over time you can slowly turn it up as the macros adjust though. I had a ton of different macros, but eventually cut down to just feather caulerpa, prolifera, chaeto, and ulva as I found them the most efficient for NO3/PO4 export and hiding spaces for pods.