I have a 2.5 gal filtered tank with a silk plant. I've had the plant for about a week and everything was fine. My fish loved it and even made a giant bubble nest under one of the leaves. However I noticed this last time when I cleaned the tank that the filter had a giant green spot.
I would've changed the filter, but as I was cleaning the tank my mother was having trouble with our new puppy and started screaming at me every three minutes over how I needed to hurry up and get the dog so admittedly I rushed figuring it was just parts of the plant. I'm moving in a week anyways so I thought it could last until I reset up the tank.
However I noticed this morning that the top of the tank suddenly had a lot of floating black specks. A lot of them are clustered on the plant itself. I'm not sure what caused these specks and I'm honestly at a loss over what to do to get rid of it.
I'm going to move my fish to a smaller tank in the meantime, but I would like to know the cause of this, how I can prevent it, and if it will cause any damage to the fish.