Faythee
Fish Herder
I bought a Ram a couple days ago and noticed 2 red threads near her vent. After research it appears to be Camallanus worms. It apparently is very hard to treat. I plan on either taking it back to the store tomorrow or putting it in my hospital tank. My concern is if the other fish have contracted it or not. Currently 2 baby Angels, 10 Danios, and 1 BN Pleco in a 56 gallon. I read it can take months before the worms are actually visible and it wipes out tanks ! I'm freaked out ! Should I go ahead and treat the entire tank as a precaution ? With what ? 

/www.skepticalaquarist.com/docs/health/nematodes.shtml