My tank is fairly new.... about 2 weeks old most thinks were previously in a 29. I was able to instantly cycle my tank with media. My lights arent ramped up that high however I have been feeding a lot. I’m wondering what this brown algae is and how I can fix it. Should I be worried?
yeah seems like diatoms but can't say for sure without a closer look. Regardless it is totally typical part of the algae cycle, which is different than the nitrogen cycle which is what instant cycle usually refers to.
Normal diatoms from a new setup as the new sand contains silicates.
Maintain that moderate lighting and you can lightly siphon if you'd like. Adding some snails such as Nassarius, astrea, turbo and nerite will help keep this clean. Also a handful of blue leg hermits.