Standard 180 Gallon 6'X2'X2'. Manufacturer:
All Glass Aquariums
The tank has two slots 10" long and 1" high
cut into the back of tank. These slots were cut by sand blasting which
I had done at a local store that specializes in making tombstones and headstones
for graves. They have the best sandblasting equipment since they use it
for sand blasting the designs on the granite used for the tombstones.
Yeah, it was'nt easy carrying a 6' tank into
the store, and trying to explain what I wanted to have done.
Attached to the back of the tank on the outside
is a 36"X8"X10" add on tank
The bottom of this add on tank has a sand
blasted hole for a 2" bulk head fitting, and is the main water return to
The side of the this add on tank also has
a 3/4" bulk head fitting which feeds the water to the skimmer, so I don't
need an additional pump for the skimmer, and I am able to directly feed
the surface skimmed water into the skimmer.
Inside the tank, is attached a 36"X2"X2"
box, which acts as the surface skimmer.
The water flows over the surface skimmer,
through the slots, into the add on tank at the back, from where it drains
into the sump, or flows into the skimmer.
A 3-D VRML view of the modifications can
be seen here
& Water Circulation
Water overflows through the tank (see tank modifications
above) and into the sump. The sump is made up of two RubberMaid 17G containers
connected to each other via a 1 1/2" bulkhead fitting. Water enters in
one container and leaves through the other.
The circulation pump is a little Giant 4
MXQC pump (950 GPH).
In addition I use 5 powerheads on a Tsunami
Wavemaker to create the waves and provide additional water movement.
These power heads are located outside the main
tank - in the add on tank at the back, and rigid PVC pipes are used to
feed the water into the tank at various angles to create sufficient turbulent
Total circulation: approx 4300 GPH ( 23 times
tank capacity), although not all the pumps are on at the same time.
The tank is set up as a Berlin type system,
with 200 lbs of Live Rock (200 lbs of Florida Rock and 30 lbs of branching
tonga rock) and 200 lbsof live Sand providing the biological filteration.
The sand bed averages a thickness of about 2" and in some places is almost
The skimmer is a home made Down Draft Skimmer
5 ft. tall, powered by a GenX pump. Water is fed into the skimmer from
the sump, and returned to the same sump. In the fall of 1998, I have modified
this skimmer to accept a beckett injector (the one used in the HSA skimmer)
and it seems to work rather well.
I used to run carbon continously in a HOT
magnum filter, and change half the carbon every month. This is primarily
to keep the yellowing of the water to a minimum. Now I just throw in 2
bags of carbon in the sump and change one bag every 2 months or so.
In late June 1996, I installed a DIY
CaCO3 reactor . The reactor uses CaribSea Geomarine as medium. The
reactor has really made my life a lot easier. I was constantly struggling
ot keep up the alkalinity in the tank, and the reactor has allowed me to
simplify that and at the same time help me maintain the alkalinity in the
If you are interested more in the reactor
and its operation, you can read the the DIY Calcium reactor article that
was published in Aquarium Frontiers Online. See the list of publications
for links to this article.
Last update March 17,2000.