Discussion Starter · #1 ·
I have two juvenile yellow labs that have been in my aquarium for at least three months that have all of the sudden stopped feeding. They also seem lethargic and are spending most of their time hiding near the back of the tank. I spend alot of time watching the activity in the tank and all of the other fish completely ignore the yellow labs, so I don't think it is stress related to agression. My other yellow labs ( I have two more juvies) appear fine and are feeding and active. I checked my water quality and the parameters all look good, although the nitrates are a tad higher (30ppm) than I would like them to be. The rest of the fish in the tank all appear to be fine. Total number of fish in the tank is 13 (55 gallon). I plan on doing a water change and removing the carbon from one of my filters and refreshing it. With this behavior effecting more than one fish I am concerned that their may be something insidious (disease) going on here. Does anyone have any ideas or suggestions.