How Green Was My Pond Scum

This is a posting entirely dedicated to relief from all the grey of the chimney construction. That is not a swath of green lawn in the above photo. It's actually a pond in the field where my horse lives.That's the product of run off from concentrated horse byproducts... heavy on the nitrogen and urea! It looks solid enough to walk on.
I thought the perfection of those puffy billowing clouds in configuration with that eerie green looked almost artificial. I've wanted to photograph this pond for ages and kept forgetting my camera. I have never seen the water in this pond but I've witnessed ponies standing neck deep and the emerging coated with a brilliant green patina so I know there's liquid in there somewhere! Just hope my horse never gets the idea to go for a dip as he's white and would probably be eternally dyed green like one of those unfortunate easter chicks!
I still can't quite figure out what's going to happen with Crispin the horse...