Okay so I've had my tank for about two days now, it's a 20g. The fish I currently have in it are; 1 powder blue gourami, 2 golden panda mollies, and 3 green cory. I didn't happen to notice this spot( look at pics) until today and it's got me worried that this could be an early infestation of ich. On the other hand I'm not even sure if it's ich or just a mark due to mistreatment at the pet store. I keep the tank at 78° F. If anyone can help me further determine if this is ich or not please help! Thank you.
