Hey everyone I had a red male betta in a 5 gallon tank with a filter. I notice tonight on the inside glass there are little white things in a bunch on one area of the glass. I'm not sure what it is. If I had to describe what it looks like I would have to say itty bitty worms. Is that even possible, I have never seen that before. If it is other then doing 100% water change in which i will do tomorrow what is that and what causes it? Is my betta sick? Ya'll will see me on here a lot because I have 14 betta's.