I'm looking to use a ReptoDeco filter to create a small pond for my White's. I'm adhering the filter to a piece of cork bark to disguise it, and using a plastic tub as the base of the pond. I was wondering if anyone had any suggestions on how I would disguise the edges of the tub? I was thinking of either using silicone to stick rocks around the edge or maybe some eco earth?

Does anyone have any experience with this and are able to help?