larryag59 July 5, 2021 Share July 5, 2021 Can anyone identify this hard growth on the back wall of my Biocube 14 saltwater tank, as well as advise what, if anything needs to be done about it? Thank you! Larry Link to comment Share on other sites More sharing options...
DaJMasta July 5, 2021 Share July 5, 2021 Looks like coralline algae to me, nothing needs to be done unless you like the clean look of the back of the tank, in which case you can scrape it off. Same stuff that grows on the rocks and make things look generally purple, but comes in a few different shades. Link to comment Share on other sites More sharing options...
larryag59 July 5, 2021 Author Share July 5, 2021 Wow, thanks, for the help! Link to comment Share on other sites More sharing options...
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