Where could the leak be?
 

I have a 30 gallon sitting on a wooden stand. I keep feeling the damp spot on the floor right in front of the aquarium but I don't feel anything as I run my hands all along the seams of the entire aquarium. It is one of the wooden stands that you can store things under and I have looked and felt all around underneath and still feel no moisture or anything. Although there is obviously a leak somewhere, do I just need to break the aquarium down and put everything in another one?

There should be evidence of a leak, like salt creep. do you have a canopy on your tank? maybe it's just some splashing if you don't have a cover on it...

I have a canopy on it and it covers all except about 1/8 of an inch on the front. I thought that could possibly be it, but I put a towel there last night to see what could be soaked up between then and this morning and it was too much water on the towel to be salt creep in less than 8 hours..

You can try wedging small pieces of "blue shop-towells" under the tank. They turn dark blue when wet...May show where water is "starting" from. :)