I've been asking a lot of qestions lately but my plakat that I got a couple weeks ago is starting to get red streaks on his fins! They are not dark red but if you look they are red.. Is he just changing color? Or is this serious?! I have everything to treat it because I keep medications on hand for situations like this but I don't want to treat and stress him for no reason! I did a small water change. Is this red streaks? Should I go straight and treat him? He still wants to eat like a pig and is swimming normal, even built a bubble nest yesterday, but I just noticed the streaks today!