Is there any difference between the silicone that you can purchase at the Aquarium store and silicone that you can buy at Builders Square or Lowes (commercial type)? The biggest difference I've noticed is the price. It states on both types that it's 100% silicone. I'm building a cave for my fish aquarium and I'm using a clay pot. I'm applying the silicone as a adhesive on the clay pot and adding small rocks that match my gravel bed. I've used the commercial type that I bought at Lowes. Will this cause any problems? Thanks.