Thanks for the feedback Conner! Lets find out.. I only have black to test with. My plan is still to use the silicone but now I'm curious..Conner;4629753; said:I would think taper it away from the BG. The only thing it would do is take up a little more space that you would just fill with sand anyways. I think it will look more natural, like the background is actually continuing down, instead of something added to the bottom.
I also think that using silicone (or something else fish safe) and sprinkling sand on it will also help to make it look more natural.
I just worry the silicone will end up very globby and unnatural looking, which is why I said "something else fish safe".
Is there a clear Krylon fusion spray paint that you could use, and then sprinkle sand on top of?
Scrap piece of Selvas background, scrap piece of pond foam (one side carved, one side not) 3 passes with Krylon Fusion for each piece and sand sprinkled on top.