What is this in my tank??

[Mrod91]

Okay so every morning I turn on the lights I see so much of this on my tank... does anybody know why and how I can get rid of this? (The brown hairlike algae on my rocks and sand)

 

[vetteguy53081]

Im seeing some type of macroalgae. While macroalgae are harmless and can be ornamental, I would keep an eye on it and assure it doesn't become evasive

 

[Arthacker87]

depends on age of the tank, might just be part of the cycle. Clean up crews help, feeding less might help, light duration might help, just depends on a few diff factors. How old is the tank?

 

[Mrod91]

It’s about a month and two weeks. Is it harmful to corals??