Cyanobacteria are the most primitive organisms known to have a daily cycle of gene activity. Even without light, they continue to switch on genes for photosynthesis during the day.
Warren
Taylor is located in Perth, Western Australia, and has just set up a
fantastic 3 metre (10 feet) reef tank utilising skylights for the
majority of the lighting.
Entire tank, showing the four skylight tubes.
At the time that these photographs were taken, the tank had only
been set up for 10 weeks, so it is no where near complete. There
are a number of things that Warren still has planned, both equipment
and livestock wise.
Left section of tank.
Middle section of tank.
Right section of tank.
System Specifications
Tank dimensions are 305cm x 76cm x 76cm (10'x2.5'x2.5').
Lighting currently consists of four skylight tubes, however that
will be supplemented by metal halides so that the tank can be observed
at night. Tank looks very good under moonlight.
View of skylights on the roof, facing west.
Close up of the top of the skylights.
Filtration is located in a room directly behind the tank and is
still a work in progress. A refugium is above the sump, lit also
by a fifth skylight tube. The protein skimmer is a DIY dual
Beckett made out of glass.
Filtration room, with refugium, protein skimmer and temporary sump.
Dual Beckett DIY protein skimmer constructed out of glass.
Livestock
Not a lot of livestock in it at the time of these photographs being
taken, as noted above it had only been set up for around 10 weeks.