[cmw1966]

Hi I found a milky/clear worm floating about in the tank, it is a new tank but I've done everything according to the pet shops advice. Is it something to worry about?. I'm due to add another fish at the weekend from a smaller tank where the fish were all previously kept together, should I wait? I do have a tendency to overfeed the fish but the two who are in the new tank aren't showing much interest in food and are lethargic.