I have a 55 gallon freshwater aquarium on an iron stand built to hold the aquarium. The problem is that the aquarium is tilted slightly forward. It's very concerning considering the size of the aquarium (don't want the whole thing to tip over). My dad measured the thing, and it's about 1/2 to 3/4 of an inch further from the wall on the top than on the bottom (near the floor). You can actually see the water is slanted. It did this in my apartment too, so it's not the floor. It has to be the stand. What's the deal? Is there anything I can do? My dad seems to want to keep sticking boards under the front part to push it back and make it level, but that idea sounds terrible to me. Do I just need a new stand? Has anyone else had this experience? I'm worried about stress on the tank (the seams) especially on such a large aquarium as well.