I have a 1-2 inch sandbed in my 240 gal reef tank. Underneath it the entire tank has egg crate. My sandbed stays relatively clean as i siphon it weekly, but I do occasionally get spots of cyano. I’d like to up my flow and grow some corals on the bottom of the tank, so any tips on removing the sandbed? Apart from that, I have no clue what to do with the egg crate as my rock is on it. I guess once the sand is out, I could break of the pieces in the open and then slightly lift the rocks and slide the egg crate out but any suggestions would be helpful.