Goldfishkeeper
Aquarium Advice Newbie
Hello. I recently noticed that my big white goldfish has a strange looking upper lip. I can't figure out what it is by searching the internet. I would love some advice. I understand about quarantine tanks etc. I've had this fish with his tank mates for a while now. It seems to be intermittent. I only notice it when I feed the fish lately. He extends his lips out and it looks like extra skin covers his mouth. He can still eat and play in the sand. Other times he looks completely normal. I took some pictures. His lip doesn't look fuzzy or cotton like at all.
Thank you.
Thank you.