Quote Originally Posted by Freedom View Post
Is it a new tank? Brown algae is often part of the cycling process, it develops in the first 2 months and disappears in another month.

Otos eat soft brown algae, no blue algae, and no hard, crusted algae. They love green veggies!
No, not a new tank. I did put a softer light in it though thinking it was cool. I think that's what caused it.