I noticed my filter has way too strong of a stream, and my little Hermes often finds himself (Or herself) getting caught in the rapids. I don't want to have to scoop out a dead frog due to my inexperience. I was planning on building a rock structure around the filter so it would trickle, rather than jet into the pond. Will superglue be okay to use to glue the rocks together? Or should I get a aquarium safe silicone? If so, could you recommend some brands for me? Also, how long do I need to let superglue or silicone set before I am able to place it back into the tank?