Can someone tell me what this is

[05grandprix]

This is growing my wife just seen it today while I am gone

 

[midtnmike41]

Does it dissappear at night? Kinda looks like red slime but the color is wrong.

 

[05grandprix]

It just stays around I'm guessing. I had her scoop it out into a bag right next to it and dispose of it and sand it was on

 

[Salty1962]

Looks like cyano.

 

[pickupman66]

that is definately Cyano. maybe no the maroon colored variety but it is Cyano.