How My Reef Hobby Almost Killed Two Kids...

I agree with sde1500. The floor support is not an issue to get out of the hobby. Unless, of course, you want out, then use it as an excuse all you want!

I had a 220 gallon piano shaped aquarium (all Glass) with solid wood stand, The stand was almost as heavy as the glass. It was custom and sitting on the second floor of a split level home. I had a construction crew reenforce the hell out of the spot the tank would go. They charged me $200 to add additional cross beams, braces, and support to the spot. No vibrations or anything were felt on that floor and nothing disturbed the tank. At the time my step son was 6 and would throw tantrums, running around and would even bang on the tank with his fists. (that was not acceptable and stopped quickly) but, that said, it didn't budge and nothing budged it!

You may have some ceiling repair / drywall to do after the floor is reenforced. But, there's no price on home safety! If you're upgrading to a larger tank, and filling it with hundreds, if not thousands of dollars of live stock, you can spend $200-$500 to have the floor re enforced by experts. Even if they don't do vertical beams, just running additional 2x4s or adding perpendicular cross braces, can add support to all of it. There's a lot of options. I would value my family's security as well as the livestock's well being by making sure the floor is reenforced.

I have my 340 gallon tank now on a concrete floor. It's not going anywhere, but I've had a few people tell me there's a chance that part of the house could sink more. Because the weight of a 340 gallon system is easily over a ton, closer to 1.5 - 2 tons with the weight of the steel stand and tank. I hope the footings and concrete floors of are all thick enough to support that. However, our soils are very wet in my area, so in the spring, almost anything sinks when the water thaws. It's like having a tractor sitting in a 6foot by 3 foot spot. Fairly compressed and all in one area. So, Here's to strong floors!
:)
 
Even if you have a finished basement, you can find a way to support it from underneath without it being too much of a problem in my opinion. Get creative, its a bit of a cop out to say you can't.

The comments were talking about vertical support beams. I'm not sure why it's a cop out to say I don't want to destroy my homes value by putting random beams in a room on the lower level, or putting a second and out of place closet in that room.
 
I agree with sde1500. The floor support is not an issue to get out of the hobby. Unless, of course, you want out, then use it as an excuse all you want!

I had a 220 gallon piano shaped aquarium (all Glass) with solid wood stand, The stand was almost as heavy as the glass. It was custom and sitting on the second floor of a split level home. I had a construction crew reenforce the hell out of the spot the tank would go. They charged me $200 to add additional cross beams, braces, and support to the spot. No vibrations or anything were felt on that floor and nothing disturbed the tank. At the time my step son was 6 and would throw tantrums, running around and would even bang on the tank with his fists. (that was not acceptable and stopped quickly) but, that said, it didn't budge and nothing budged it!

You may have some ceiling repair / drywall to do after the floor is reenforced. But, there's no price on home safety! If you're upgrading to a larger tank, and filling it with hundreds, if not thousands of dollars of live stock, you can spend $200-$500 to have the floor re enforced by experts. Even if they don't do vertical beams, just running additional 2x4s or adding perpendicular cross braces, can add support to all of it. There's a lot of options. I would value my family's security as well as the livestock's well being by making sure the floor is reenforced.

I have my 340 gallon tank now on a concrete floor. It's not going anywhere, but I've had a few people tell me there's a chance that part of the house could sink more. Because the weight of a 340 gallon system is easily over a ton, closer to 1.5 - 2 tons with the weight of the steel stand and tank. I hope the footings and concrete floors of are all thick enough to support that. However, our soils are very wet in my area, so in the spring, almost anything sinks when the water thaws. It's like having a tractor sitting in a 6foot by 3 foot spot. Fairly compressed and all in one area. So, Here's to strong floors!
:)

You're comment on cross braces makes sense. When talking about vertical support beams, that definitely wouldn't work out in my home situation. But I did find this amazing write up on support of aquariums. http://www.african-cichlid.com/Structure.htm After reading up on it, and the comments on here, I think I just have an extremely poorly placed tank. And the place I intend to put the new one seems to be about as ideal as possible, aside from concrete slab.
 
Hate to break it to you but two little kids jumping up and down shouldnt cause a 55g tank to do that... Even if the tank was running length wise on joists..

I suggest you get your subfloor and joists looked at... I have a 135 gallon tank on a steel atand with 4 legs which is the worst thing you can do. And its siyting in line with the joists so its sitting on 2 joists length wise... And its only 3rd level.

I weigh 300 lbs if i jump up and down in front of the tank it just wiggles a little bit nothing major.

So think about it for a second.. 55 gallons vs 135 gallons on a stand with 4 stilts for legs.. Something isnt right with your floor
 
Hate to break it to you but two little kids jumping up and down shouldnt cause a 55g tank to do that... Even if the tank was running length wise on joists..

I suggest you get your subfloor and joists looked at... I have a 135 gallon tank on a steel atand with 4 legs which is the worst thing you can do. And its siyting in line with the joists so its sitting on 2 joists length wise... And its only 3rd level.

I weigh 300 lbs if i jump up and down in front of the tank it just wiggles a little bit nothing major.

So think about it for a second.. 55 gallons vs 135 gallons on a stand with 4 stilts for legs.. Something isnt right with your floor

Thanks for the concern. Definitely proceeding with caution. As I said in the OP, very scary and of course worried for the lives of children. A risk like that is not something to play around with.

I might disagree with the comparison though. I think a 55g with narrow base is much more likely to wobble when a 300 pound man jumps in front of it, than a 135g with wider base. That still doesn't matter. Aquariums shouldn't wobble.
 
Thanks for the concern. Definitely proceeding with caution. As I said in the OP, very scary and of course worried for the lives of children. A risk like that is not something to play around with.

I might disagree with the comparison though. I think a 55g with narrow base is much more likely to wobble when a 300 pound man jumps in front of it, than a 135g with wider base. That still doesn't matter. Aquariums shouldn't wobble.



8 hear you on being wider 18 inches vs 13 like a 55.. But is your stand on legs or is it a wooden atand with even support on the entire base ? Was it on carpet or no i forgot if you mentioned that.

The point i made was my 135 is on a steel stand with only 4 legs so it isnt being supported on the floor on the entire base.. The legs are L shaped so stilts basically.. I had to weld steel plates on the L legs to add a little support and put a little pressure treated wood laying flat under rhat to help it from wobbling. A legged stand for a larged tank on carpet laying on the joists leg wise is one of the worst things you can do is what im saying.

ive had a 55g in the past joist length wise an it never moved even a little. I also have a 92g bowfront and a 30g t and 69g hexagon trust me i know lol.

Im just saying your floor seems very weak if it cant handle that. Someone mentioned floors support 59lbs per square inch what not.. With a tank using a wooden stand with support on the entire outer base even 1000lbs will be much much less then 50 lbs per square inch. A 135g on a wooden base will be less than 50 as well.. But a steel stand with L shaped legs on 2 inches long with a near 2000lbs stand.tank. thats 500 lbs on each leg on each point.. Make sense ?


It doesnt hurt to pull up the carpet and look at the subfloor at least. Or get a mini camera from walmart or harbor freight and look in the drywall at the joists..
 
There is a section of basement ceiling exposed in the utility area. I should be able to assume it's the same for the rest of the house, although it's not a guarantee. I have 2x10 joists positioned 16" centers. The new tank will go up against a support wall with joists spanning 13'. The tank should cross over 3 of the joists. This should totally be more than sufficient for an 800 lb tank. However, if I experience the same issues, I'll know there is something substandard going on with the house.
 
UPDATE-

I transferred everything successfully from my 55 wobble tank and into my 75. I can jump next to it and there is no shaking or wobbling. It is in a corner, and sits across 3 joists. The span is shorter for these joists, and it's right next to a support wall.

Thanks for all the comments.
 
Houses are typically designed for a live load around 50 lb/sq ft per code so most tanks exceed that by a large margin. Having it against a wall that is supported below is key and it sounds like that is what you have now.


There is a section of basement ceiling exposed in the utility area. I should be able to assume it's the same for the rest of the house, although it's not a guarantee. I have 2x10 joists positioned 16" centers. The new tank will go up against a support wall with joists spanning 13'. The tank should cross over 3 of the joists. This should totally be more than sufficient for an 800 lb tank. However, if I experience the same issues, I'll know there is something substandard going on with the house.
 
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