By Bob Goemans
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Owners Name: Greg Rothschild

Location: Los Angeles, CA, USA

Year the tank was set up: 11/01

Size and Volume of the Tank: 5' x 18" x 24" - 100 gallons

Sump Size: 25 Gallons

Pounds of Live Rock 150 Pounds

Sand Type/Depth: Aragonite, 3 - 5"

Type of Biological Filtration: Live rock, live sand, and refugium


Main system pumps:Two Rio Hyperflows - 900 GPH each

Additional pumps: An additional 1600 GPH for flow (closed loop, in-tank powerheads).

Protein Skimmers: Southbay

Reactors: K2R

Monitoring Equipment: pH monitor

Wavemakers: none

Doser: none

Chillers: none

Refugium: 25 gallon tank, 4" sand, live rock/rubble, Caulerpa


Lamps: Two 250W double ended 12K metal halides, one 96W Power Compact Actinic, two 55W Power Compact Actinics.

Photoperiod: MH for 9.5 hours, actinics for 12 hours


Water Temperature:78 - 80ºF

Specific Gravity: 1.024

PH: 8-ish

Calcium:370 - 400 ppm

Alkalinity: 9 dKH

Nitrate: 5 - 10 ppm

Nitrite: 0.02 ppm

Ozone: none

Phosphate: Unknown

Water Changes: 10% every two weeks

Additives: Lugol's Iodine once a week

RO/DI water: RO - yes, DI - yes

Brand of Salt Mix: Tropic Marin


Feeds the fish three times via automatic feeder, with flakes. Once a day with meaty food like mysis shrimp. Some sort of phytoplankton fed once a day also (BioPlankton, Dt's etc.). Seaweed clipped inside tank every couple days.


To see more of Greg's excellent photography skills, please visit his website at

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Boyd Enterprises