So sorry to hear this rstar
...and yes we all have things happen like this... that just make you shake your head and want to bury it in the sand and never come out...and blurt out some not so very nice words that you would never say under normal circumstances... let alone admit you even know them....
JUST DO THE GIRLY THING... HAVE A GOOD CRY AND BOUNCE BACK... AND GET READY TO ACCEPT THE NEW CHALLENGE....who's afraid of a little...cyano, nuisance algae, bryopsis or even dreaded dino's...turn the lights out and pretend it is beautiful.