Hi I was down at my tank this morning and took notice that the top of my tubes for my UGF I have some brown algea started, and I have one little spot on my heater, at least it looks like brown algea. How can I clean them up. I do not have any algea eaters, I had 2 otto cats and 2 days after I bought them they both died, and haven't bought any algea eater since.
Thanks for the help
Thanks for the help