bloom turned brown

[dragom]

Here is what it looked like a couple of days ago

But now it is all brown I think I know why but just wanted to check and make sure. When I picked it up there was water still in a plate and not just a little. I must have not let it drain enough before I put i back in the window. How can avoid it in the future was it the water sitting in it bottom of the dish the problem. I am too embarrassed to show a picture of it now but believe me it is a dark brown and I threw the blooms out. If I am wrong please correct me.