The barrier is not big enough for 100 gallons. So at some point it either overflows on the floor or, as I'm aiming for, back into the tank once the water level rises above the tank height.
That's why I'm asking if it will float. If it floats then the water level will keep rising along with the tank and the water won't go back in the tank and will overflow.
I'm securing the tank to the box so it stays there.
But I think I just did something really stupid. I'm setting up the drain to drain in my bathtub. This is what I have
On all the connections and inside the tank by the plug is plumber's epoxy. I didn't realize it might be harmful to the turtle.
I put aquarium safe silicone around it but I doubt I caught every spot. What will happen?