We just got Shark 1 week ago and he's doing great--eating well, swimming a lot, even started blowing small bubble nests! BUT!! Tonight I noticed one single small white spot on his right pectoral fin. I stared at him for a long time and don't see any other spots at all. Is it possible that he has ich with just one spot like this? Or could it be something else? I don't want to stress him out by treating something unnecessarily but don't want to miss a chance at solving a potential problem early so I'm sort of stuck.
As Shakespeare would say...To treat or not to treat, that is the question! ;) Any advice for this new betta owner?
He's alone in a 6.6 gal filtered, heated tank with clean water (not tested but doing 50% changes every 4 days) and silk plants.