Yes it will stick to itself. Only silicon works to ruin our tanks with its one shot and then done properties
One tip with the black/dark grey foam. It does not stick to glass well at all. If you notice it pealing off the glass on one edge it is best to just run your fingers up under it and it will pull free from the glass in one shot easily. Then apply silicone to the entire back of the foam and press it into place. Just a friendly tip. I had a whole side of one tank fall off over night. Learned that lesson the hard way lol.
Tank is looking great though Eli!





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