Green Spot Algae

[blinky000]

I have some brazilian pennywort that has come under attack by green spot algae in the past few days that neither my otos nor my snails will eat. The problem is I've just sold a tonne of it to a friend and I don't want it to arrive looking the way it does. How on earth do I get rid of this? What causes it? Should I do a blackout for a few days?
There also seems to be a blueish hue to some of my plant leaves. Is this another type of algae that won't be eaten by the cleanup crew?

 

[betta fish]

Do you have nerite snails

 

[blinky000]

Oooh, I do not. And I just read they don't eat plants or breed in freshwater. Bonus! Thank you for that

 

[Million]

Be warned that they do lay white eggs on most surfaces, which are extremely hard to get rid of! I loved my Gordon apart from that

 

[blinky000]

I've already got ramshorns laying eggs on everything. I don't care anymore