End Of Tank Sagging?

[Howard0]

Just bought a 30 gallon tank. Filled it up and everything seems to be running fine. However, I noticed that the water leve on one end is ~1 cm higher than the other. I've got the tank on a table. ~5 inches of it is hanging off one side. Its supported by an extended part of the table, however I do not think its holding the full weight of the aquarium.
 
Do I have a serious problem here? Any advice would be greatly appreciated.
 
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[Mamashack]

Yes I would say that there could be a serious failure at some point if both ends of the tank aren't fully supported.
Best to sort it sooner than when it fails.
Did you use a mature filter before adding your fish? If not, they will be at risk of ammonia and nitrite poisoning. 

 

[Wills]

Yeah you need to be really really careful with getting the aquarium level, any uneven surfaces will make a lot of stress build up in one area until it cracks.
 
There are loads of DIY tutorials on how to build your own stand if you dont have a suitable piece of furniture. Although a stand for a 30g tank should only cost about £60-£80. An other alternative are kitchen units which often have very good weight limits.
 
Wills

 

[Sunset]

I would rather have the table or cabinet bigger than the tanks length but until you find or build one I would center the tank so there is a 2 1/2" over hang on both sides instead of 5" on the one side.
The water level line may not be level because of the floor, most floors on not 100% level. I know my tank is off from one end to the other by approximently 1/4-1/2" in a 6' span. It's been like this for 15 years with no damage to the tank (knock on wood)