I am upgrading my tank very shortly. I currently have gravel in my tank and my pike likes to burrow in it. I was thinking about switching to sand so he doesn't hurt himself. While I should have asked about this in set ups I figured I would ask here because we all have pikes. I was reading a lot in regards to pool filter sand. I don't want to ruin my filters with sand so I wanted to ask what you guys thought. Does anyone else have sand? I also have Plecos in my tank. Is this easier to clean? How does this all work?