Pink algae growing everywhere turning in to string??? :(
I have had small signs of this algae showing up in this tank for a while... But nothing like this. All of a sudden, after a standard tank cleaning with a possibly dirty brush (ashamed to say), there were small pink flakes everywhere and some of it started turning in to string... Rapidly. One of my fish recently suffered from a bacterial infection. I am so afraid they'll die tomorrow and I have no idea what to do. I have a 15 gallon tank, standard walmart carbon filter. I have 3 tropical fish. Recently I have also gotten dried salt-like substance growing all over the lid of my tank. I have heard that the pink algae is actually a bacteria, but all i know is hat there are pool treatments for it out there, and i dont know if theyre harmful to fish. Any ideas of what the problem could be or how I can treat it??? Thanks.