So I found a 30 gallon tank outside my garbage with everything heater filter lights etc. so I thought it was good to go to start cycling, minus cleaning and running some tests. Due to it being dirty, it looked like the last point it had water it was at about 2/3 but I think that was because it want being used, but previously used for fish because of everything with it. Day 1 cleaned it and put it on paper towels in the bath tub to check for any signs of leaking. After 8 hours there was no sign whatsoever, not even a drop. Day 2 morning, just in case, put a light later of silicon on the edges. Figured out the filter didn't work. Day 3 Silicon dried but no stand yet so put it on a carpet, filled it up, splashed everywhere and a lot trying to get the filter to work. Bought a new filter, filled the tank to the plastic rim once I put the new filter in. Day 4 water level has gone down at least an inch over night. That night was also typical Minnesota going from super humid to not very humid. It is also damp-wet around the tank. This 30 gallon also has a glass top on it and my 10 gallon which I topped off, has no cover at all, and know doesn't leak, went down about 3/4 of an inch. Still trying to figure out why the 30 went down a little over an inch and still has water around it, I poured water on the carpet in a different room to compare the drying. Day 5 test spot of water has dried almost completely but can still feel water. Wetness around the tank is only slightly drier than it was yesterday. The water level in the 30 gallon hasn't changed at all not even an 1/8 of an inch. So I have no idea what's going on. Any input?