I know how you feel. I had that happen a few times with my first BP. It's gross and definitely smelly. It was feeding night here too tonight. Mine wasn't as bad as yours but I had cleaned Ellas tank earlier tonight. I had it all cleaned up,plants perfect water crystal clear,etc. Well,I fed her and she decided to drag her rat through the water bowl a few times so then I had a bowl of brownish water filled with Eco-Earth. She knocked over every plant and decoration in the tank readjusting her rat. So now her tank basically looks like a hurricane went through. My husband is now calling her Hurricane Ella lol.

I changed her water once she went back to her hide but I figure the decorations can wait until tomorrow. I really need to learn NOT to bother cleaning her tank until a day or so after she eats lol.