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Just my 2 cents here.
Although VHO may not be required for actinic lighting it is important to note that lighting below 480 Nm is still absorbed by corals. If you have ever turned on you actinics in the middle of the night you will see corals react to the light.
Low frequency lighting can penitrate to lower depths than higher frequency lighting, and this radiation that is barely visible to the human eye can still have a profound effect on coral growth. IMO VHO actinics are not needed, as NO actinics will reach lower depths with more ease than say a 10k or 50/50 bulb. It would be over kill, kind of like putting 400 watt MH on a 20 gallon nano tank.
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THE BARQUARIUM:
55 gallon cube - 50 lbs LR - ASM G3 skimmer - 30 Gallon sump - 22 Gallon refugium / frag tank - 4x 24 watt HO T5's - Mag 9.5 return - Pin Point PH monitor - 400 watt XM 20K MH in Lumenarc reflector - Dual stage GFO/NO3 media reactor - 6 stage RODI auto top up -Wavemaster Pro running 3 Koralia 2's.
Fully stocked with fish, corals and usually some fine scotch
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