BUILD REPORT OF A 42 000 L AQUARIUM
This build report shows the progress of a large private saltwater aquarium in Salzburg, Austria. The aquarium is 17m² area, 2.5m deep water and planned to become a saltwater shark and coral aquarium in the long run.
THE PLANNING PHASE (early till 28.10.2017)
The ground floor
The aquarium will be built in a newly constructed house. it will be facing north to allow the adjoining living room to face south towards the sun. There are 2 viewing panes. One of 5m wide and 2m high and visible from the living room. The other 1.8m wide and 1.3m high and visible from an adjoining hot tub.
The cellar will hold 3 tanks of 5000 Liters each. This is replacement salt water. These tanks need to be inserted before completion of the floor of the gorund floor.
The first floor
To access the aquarium from above, there is a separate room with a sealable hole in the floor.
This plan shows the height of all windows and the water level. The acrylic was calculated to be strong enough to withstand a water level 50cm higher than the top edge of the glass.
Here are a few rough visualizations of how it will look
TANK DELIVERY PHASE (18.10.2017)
The tanks arrived
The tanks arrived by bus and had to be rolled out of the truck. Now they are waiting for the cellar to be ready. Cost per tank was €1056 plur €450 for delivery. I opted for 3 tanks because this will be my fresh water. 3 tanks here will allow me to have automatic water changes for a period of almost a year (3% per month = 40L per day)
CELLAR BUILDING PHASE (20.10.2017)
The floor of the cellar is being built
The floor of the cellar is being built. The walls of the tank room get an extra waterproofing inlay in case of leakage.
TANK ROOM BUILDING PHASE (26.11.2017)
The room underneath the aquarium will hold the 3 saltwater tanks.
These will be 5000L each and connected to each other. They will hold premade salt water for automatic 50L/day water changes. Enough for about 6 months before intervention is needed.
FLOOR OF AQUARIUM BUILDING PHASE (1.12.2017)
The floor of the aquarium is being built.
Both the floor of the aquarium and the sitting area in front of the glass are lowered by 30cm. This allows for enough air space above the aquarium and a nicer athmosphere.
The tank room and the sitting area in front of it got their roof/floor. The tank room is underneath 40 tonns of water so needed to be made of concrete. The sitting area could be held up by a brick wall.
Here you see the floor of the normal ground floor being
POOL BUILDING PHASE (1.12.2017)
One side of the aquarium gets a window into th
To allow a sufficient depth, the pool floor needed to be set 1 meter deeper than the rest of the floor. this will allow for a water depth of 1m40cm.
Here you see the floor of the normal ground floor being created 30cm higher than that of the aquarium and sitting area.
ACRYLIC FRAME DELIVERY (1.12.2017)
The acrylic will be fitted in a special steel frame construction.
There are 2 main ways how to fit the panels into the frame.
OPTION 1: Concrete frame
The lower cost option is to create a window frame out of concrete. No steel is needed and skilled construction workers can create this. The disadvantage is that from the viewing side, the acrylic panel is not even with the wall, but instead 20cm further inside the wall.
OPTION 2: Stainless steel frame
The supperior option (though more costly) is the integration of a specially made stainless steel frame that is integrated into the concrete. The advantage is, that the acrylic panel is almost even with the wall on the viewing side. Also it is much more lear proof than the concrete version of integration.
THIS BUILD PROJECT
In this build project, the superior stainless steel frame option was chosen. The steel frames were created at the steel works and shipped with wooden planels inserted to simulate the acrylic panels that will be delivered later on.
Delivery of the large window
Fitting the large window into the aquarium to connect it with the concrete.
View of the frame of the smaller window. These metal loops are connected to the concrete.