Help identifying algae

[R6REEFER]

This was 2 weeks ago, its now spread to back glass and base rock (even after hermit clean up) Installing phosban 150 and hydor smartwave system tomorrow, should do the trick but I'm curious what kind it is as I can find no similar images. It grows right back after tank scraping and hermits. Thanks

[RocketEngineer]

Diatoms. Normally the first type of algae to appear in a tank. Uses up available silicates then disappears. Nothing to worry about.

[R6REEFER]

Nailed it, thanks man.