Coral Care 

Sensitivity/Difficulty:
Level 1 - easy to care for, good corals for the novice aquarist
Level 2 - require slightly more attention than level 1 corals, but
still generally tolerant
Level 3 - require stable, established aquariums and care by an
experienced aquarist
Level 4 - should only be kept by the most experienced aquarists
Level 5 - not known to be able to survive in aquariums, even under the
care of the most experienced aquarists

Level 0 - no light
...
Level 3 - one foot below modest VHO or T5 fluorescent lighting
...
Level 5 - two feet below extensive VHO or T5 fluorescent lighting
...
Level 6 - one foot below extensive VHO or T5 fluorescent lighting
Level 7 - two feet below 250 watt single ended MH light (or 150-175 watt MH with HQI ballast)
Level 8 - one foot below 250 watt single ended MH light (or 150-175 watt MH with HQI ballast)
...
Level 10 - one foot below 400 watt single ended MH (or 250 watt MH with HQI ballast)

Guide to Care Pages