put up against the wall its really unlikely its the floor because i think houses are designed for these kinds of stuff. like 6+ people at a dinner table thats almost the same as how much my aquarium weighs with it filled 3/4 (assuming everyone is humongous).
Let’s keep in mind that this tank is sitting on only ~9ft2 of floor area, approximately three people’s worth of floor area, even on a bench!
and the stand is homemade and im not a carpenter so i mightve messed up im mostly looking for a way to fix that, like whether i should shim it or not and trying to get past expercncies.
Okay, this changed things! Now we’re looking for how far out of flat the stand top is, more than anything!
Basically, the tank doesn’t need to be perfectly level, as long as the whole thing slopes equally! — any one high or low corner, or two diagonally opposed corners of a stand top will create a twisting force which tends to try to peel the tank apart at the seams!
the wall goes to the ground, and the joists are perpendicular. i drained like 10 gallons so far thats the best i can do to lighten the load for now. its on the second floor, do you think its fine in terms of it collapsing or anything
Okay, this is all good info!
— Let’s figure out whether this is the floor bowing, or your stand being out of square…
— you are confident that this stand was level before you added and filled the tank, correct?
— we can rule out the floor bowing, accounting for the aforementioned thin carpet, by measuring how far out of level the tank is currently (air gap between front of tank rim and bottom of bubble level held in a level position [such as your second pic in your original post])… then, draining the tank, and checking how much closer to level it gets!
— first step should be the above floor deflection/bowing check, followed by stand examination…
