Algae??

[Robbieee1212]

I just wanna know what this stuff is? Thank you in advance


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[Reefing Madness]

Typical algae growth from time. Wipe down the glass. I'd say, it looks like your light hits it pretty good, thats a good reason it will grow pretty good in that spot.

 

[melosu58]

You can get one of these these to take care of the problem.

 

[Robbieee1212]

Thanks you guys! I really appreciate it


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[54seaweed]

if its on the back glass I wouldn't stress over it I just let it go