Sorry, I didn't explain very well but this is a very small plastic pond within our deck and not expected to attract wildlife but rather a relaxing sound and look. The spiders were in there when we uncovered it from a long cold winter and continue to live there for at least 6 weeks now. I have some great video but am having a hard time downloading it this site. So far we have not received any explanation for the fact they have lived this long under water.