Recently my black mood goldfish has been displaying some unusual symptoms... Swimming with her tail higher than her head, and having long, white poops. But a couple days ago I noticed little “bumps”. They don’t really look like cysts, tumors or carp pox, they just look like... Bumps. Tank size is 55 gallons, 0 ammonia, 0 nitrite, 5 or so nitrate. What are these? Should I get her checked by a vet, to make sure they’re not tumors?