Fuel leak

View attachment 1714947780 Look like this? All I can think of is the inside vent tube is below the fuel level and it is getting pressurized somehow, possibly on a down angle?
Yes the vent tube is on the bottom directly below the feed line . This is how it was when I took it out but the person before me replaced tank and sender but it only had a couple of gallons of gas in it. Maybe it's not suppose to be that way ?