Disaster waiting to happen?

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turbofish

Feeder Fish
MFK Member
May 21, 2007
14
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Cleveland, OH
I have been concerned recently about whether my 95 gallon marine aquarium has adequate support. It is on a wood floor on an older house. I plan to put some floor jacks in the basement to support it. I think that will fix that problem, but in researching that topic I came across something that now also has me concerned. My tank is not level.

When I moved, I hired some guys from my LFS to move the tank. They set it up for me in the living room. I should have paid much closer attention to them. At the time, we noticed that the tank was not level. I didn't think anything of it at the time (I know -- I should have done my research). It leans perhaps a half inch from the wall, bottom to top (tank is 5 feet tall). The tank is a 95-gallon All-Glass Wave aquarium and stand. The top of the stand has a flat surface, so I think it should give good support. But the whole stand leans.

Unfortunately, I also noticed another problem the other day. The LFS guys did not put the tank square on the stand. (Can't believe I never noticed it before.) The back of the aquarium is angled just slightly so that the back right corner hangs over the edge of the stand probably a millimeter or so. It's minimal and just part of the plastic casing is hanging over. The glass inside the plastic casing is above the stand and does not hang over.

This tank has been in this spot for over a year and a half now. I don't see any problems with it. I was thinking about putting a hang-on-tank protein skimmer on the back. That is when I noticed the aquarium's back was not flush with the stand. Now I worry about the skimmer potentially adding more stress.

I thought I'd ask the forum readers for suggestions and advice. Is it a disaster waiting to happen or am I worried about nothing?
 
Hi turbofish, I don't foresee a problem from your description.

But how long were you planning on planning on putting floor jacks under the tank :confused: :D.

After 1.5yrs the tanks probably warped (:j/k: ).

Can you get us some pix of the whole thing and problem area?

Dr Joe

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This is exactely why I am moving my fish into the basement...!
I have them on the middle floor of a 3 floor terraced house..
The house is over 100years old... and my tank is on the middle floor resting on 1 beam!!!!... I have about a quarter inch weater level dip on the one side... and if i move around on the floor my fish can feel the vibrations and get freaked!

I am not sure what you could do quickly to sort out the problem... but me walking past my tank constantly upsets them... im sure it has the same effect on your fish...

i was thinking of getting a very long piece of board to put under the tank that would go over more joists, spread the load out wider, but this would make a raise in the floor and not look that good i spose... also the vibrations of me walking on the wooden floor would still reverb in the tank.

do what im doing... if you have a basement and move your tank down there... :)
 
I've only been in the planning stage for the floor jacks for a couple months now. ;) Several people (including a home inspector) have told me "no problem" and several have said otherwise. I honestly don't think the floor is getting any worse. As I said, the tank leaned from day one. There is a plaster ceiling below the tank in a room in the basement. Since plaster is so unforgiving, I would think any warping of the floor joists would become obvious in the basement fairly quickly. And the floor boards in the living room look fine. A friend of mine in the construction business suggested the floor jacks just as a safety measure, and the home inspector concurred. It will cost only about $100.

So I'm not too worried about the leaning getting worse (although I guess it could). All I'm worried about now is if the current leaning is causing some structural problems to develop in the tank itself, leading to a possible leak. And the fact that the guys who moved it didn't get it flush to the top of the stand (as I detailed in the original post). I'm worried about the bit of the tank that is hanging over the edge of the stand. And about putting more weight on that corner by hanging a protein skimmer there. But I'm hoping I'm worried over nothing.

I'll take a picture of the problem area of the stand and post it. There's not much to see -- as I said it only hangs over about a millimeter on one corner.

And, yes, I have thought about putting the aquarium in the basement. But my basement is rather dismal and I really enjoy having it in the living room. It would not get much attention. I should have planned better for it in the beginning.

Thanks for the input.
 
I take it they didn't put a layer of styrofoam under the tank then.

If you want complete piece of mind, drain the tank into 4 tubs, separate the fish between all the tubs with the filter in with the largest fish to keep it a live.remove the tank, place a piece of styrofoam a little bigger than the tank on the stand and replace the tank. Refill and after a day trim the foam to the size of the tank. It will crush and even out any pressure points.

Measure the distance from the wall to the tank accurately before you drain it and again after it is drained to see if the floor is in fact deflecting.

OR

Increase your home insurance and take a couple of sleeping pills at bedtime :screwy:.

Dr Joe

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Dr Joe;1004527; said:
I take it they didn't put a layer of styrofoam under the tank then.

...

Increase your home insurance and take a couple of sleeping pills at bedtime :screwy:.

.

Good one! I have lost a little sleep over it!

No foam was placed under the tank. I thought these guys were pros. They certainly charged enough! Dr. Joe, you originally didn't think there would be a problem. Have you changed you mind? I certainly wouldn't look forward to dreining the tank. Your advice sounds very reasonable -- just wish I knew if it was necessary.
 
well if your read the "proper setup techniques" they always say the make sure its "level in square" this prevents one panel of glass getting more stress then normal. im a carpenter also and the floor jacks are always a good idea. 92 gallon tank on wood floor gets me a bit nervous because ive seen bad things happen. but if your house is new enough there are new technologies in lumber so they have more strength per square foot. (saftey rating on the floor) LVL lumber and then new construction of I-beams are pretty strong. this really depends on placement of tank, the total span of the joists from foundation wall to foundation wall, and weather or not they tank is horizontal to the joists. if the span is 10ft or less in a newer house, less then 30 years old, then i think youll be okay!!
 
turbofish;1004652; said:
Good one! I have lost a little sleep over it!

No foam was placed under the tank. I thought these guys were pros. They certainly charged enough! Dr. Joe, you originally didn't think there would be a problem. Have you changed you mind? I certainly wouldn't look forward to dreining the tank. Your advice sounds very reasonable -- just wish I knew if it was necessary.

Nope, just giving you the options available.

Your tank and stand are square as a unit and the dissimilarity is between the unit and the house. If the tank is only of on the stand by "1mm" then it is still supports by the glass.

You can look at all the seams on the tank to see if there is any visible stress i.e. wide or thin seams (of course you don't know what they looked like when it was new so this will just stress you more :grinno:).

Dr Joe

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