help #whitepoop

Hey guys. Sorry for all the questions I’m having about my fish. I’m just a newbie who is still learning everything. So I’ve had my 90 litre tank set up for 6 months now. I’ve had my two clown fish and juvenile foxface in there for about 5 months now. The last couple of days, my male clownfish...

hi, I literally just got my fish today, And it seems 3 of my goldfish all had this problem, i have no idea if its parasites or not? im worried and idk what to do does anyone know what i can do? any suggestions? advice? and how i treat it?