What is this brown coating in my tank?

[Kristy3693]

Also, if you turn off your circulation during feeding, it will be easier for the fish to get it. Less likely to get stuck in places the fish can't get.

 

[Heathers.why]

Everyone has been so helpful and thank you so much I hope someday to be able to post answers like these that help out another newbie. What a wonderful warm welcome!

 

[Plecolover18]

Looks like brown algae