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that is some very fancy pink cyano!!!!The green spots on the glass is just normal green algae.
The dark green and purple patches on the sand and on the glass under the sand is Cyanobacter bacteria (blue green algae). It comes in a range of colours including blue, green, red, pink, purple, black and red. Use a gravel cleaner and suck it out when you see it. And reduce the amount of dry food going into the tank.