Floor support for aquarium

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Hunterpearson

Black Skirt Tetra
MFK Member
Jan 3, 2020
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I currently have a 125 gallon tank with two peacock bass and a tiger oscar. I’m buying a 200 gallon tank soon and wondering if my house floors can support a 200 gallon tank.
 
I'm gonna warn you ahead of time. You're gonna get a bunch of answers like "we can't tell you that, consult an engineer". The problem is liability. Most of the people here don't want it on them if your tank goes through the floor.

That being said, I don't mind being liable, and will try to help best I can. This can take some basic knowledge of construction and engineering, but it is not Chinese rocket arithmetic as some would make it seem. A lot of common sense stuff imo, which unfortunately many people lack.

Tell us more about your floor. Is it ground floor, 2nd floor? What type of construction? Solid lumber or engineered? Post some pics of where the tank is going and even better some pics of the floor from underneath if you can.

200 gallons is not a whole lot in terms of stressing your floor ime, but its not a little either. Typical rules of thumb when placing big tanks is put them up against a load bearing wall and have the weight of the tank distributed evenly amongst as many floor joists as possible. If at all possible, avoid these issues altogether and put the tank on a solid foundation like a cement slab on your ground floor or basement.

It's a good idea to have a quality level board handy when setting up big tanks. When filling the tank constantly check to see your tank is not pitching forward or back, side to side. If your tank stays right where it was before you filled it thats a good indication your floor is sturdy.
 
Yeah, I agree with Backfromthedead's reply. I think you can put a 200-gallon tank with a solid foundation or perhaps a sturdy aquarium table.
 
I had 20 tanks in my house, from 50 to a couple hundred gallons, and including a 500 gallon kiddy pool that took up most of a small bedroom, which came to a total of about 1500-2000 gallons.The house was built in the mid 1800s, and had 12" floor joists.
I put 3 floor jacks in the basement under the heaviest line of tanks just to be safe.
 
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