2100 gallon aquarium

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lsgraulau

Feeder Fish
MFK Member
Jun 12, 2011
84
0
6
Puerto Rico
Now that I've captured your attention I would like any tips regarding the build of a large aquarium out of cement. The reason I chose cement is because it's relatively cheap and strong plus I live in the tropics so wood is not such a good material considering the insects and constant humidity changes. So far I'm planning to have an L-shaped aquarium with the following dimensions (in inches): 164 long by 36 deep (front to back) by 36 high in the long part and the short part will be 130 by 60 deep at most (front to back) by 36 high.

The tank is going to be used as a freshwater aquarium. I also plan to keep the canopy clear and just wrap the front side with plastic to allow more light to enter as I want to keep plants in the airspace above to help with filtering the water. Lighting will be done with natural sunlight supplemented by any good cheap both in costs and upkeep (this is important) lighting that I can find and will serve the purpose right. Substrate will be most likely sand as I like the natural look. The plumbing for filters and water changes will be as follows:

> False floor of one inch to allow for easier water removal.

> Water outlets will be through the bottom of the tank and will go up a bit higher than water level. This should cut on the noise of a sump and give me an easier method to clean the tank. To strengthen the plumbing I plan on building the tubes into the walls of the aquarium itself.

>Water return will be by water level pipes and an array of tubes at ceiling level with holes cut in them to give the effect of rain. This will be controlled by switches so it's not constant.

I have a small draft of how I would like it designed but it doesn't include the plumbing or support structer as I haven't had time to finish that part of the design.

I'd like a relative guess-estimate of the cost.

What would be cheaper and safer: acrylic or glass and what thickness would I need for it?

Any advice before, during and after the construction process to make this a safe, enjoyable build for years to come?
 
Forgot to mention that I'm in the information gathering phase so I can convince my parents about it's safety and "ease of build"
 
Sounds like a monster project. Any chance you can draft some of your ideas to give us a better visual? You did say it would be 'L' shaped, but I am not understanding where the glass viewing front is going to be located.
 
Nice sounding project.

I am sure that you are aware of the fact that a project of this scale is more than a simple DIY project. The cost will be significant (my 240 cost me around $1000 to build). preparing the room it will be in is paramount. Not a good thing to have a beautiful tank while the room is rotting away from humidity. Building and maintenance will take a lot of time, be sure that your significant other is aware of this and supports it.

Having gotten that off my chest I am looking forward to this.

Bear
 
I am fully aware of the humidity problems but luckily we always keep our windows open and the whole house is built with cement. The cost I am aware that it will be high but I have no idea how high it will be. I'm designing the plumbing system to make maintenance as simple as possible.

Here are the drafts but these are more for size measure since the supports are way thicker and I'm doing those changes in the plumbing drafts. I would like to know if the stand could be relatively hollow to house one or two large sumps. The stand will also be cement built if I get the green light to build it

Full front
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Top
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Perspective front
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Glass is my choice, but can't determine glass thickness without some dimensions, depth and top support or not.

Do you realize how much such a structure full of water will weigh? Water weighs 8.3 lbs/ gallon. No residential floor is designed for that, even if it's concrete.

If you use concrete blocks, they will need to be filled with concrete and reinforced laterally and vertically with steel. Also, you can't just set the walls on an existing concrete floor without a method of attachment. Water lateral force is .43 psi/foot of depth.
 
That is the only serious thing in my way. The water depth would be 36 inches. I forgot to mention the green part would be just air. I assumed since the weight of the water was going to be spread over a large surface (relative) it wouldn't be much different on the floor side of things, vertical support such as walls is not something I'd be comfortable with unless I consult someone with greater knowledge. I'm really thankful you cleared that up.
 
I'm assuming you have an existing concrete slab on grade, since you are in Puerto Rico. You will need to cut out the concrete for the area you intend, dig footings and start from scratch. This is too big of a build to try shortcuts. A minor crack in the floor will destroy your dream.
 
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