One of my goldfish in my 29 gallon has been acting very bizarre lately. He is just sitting at the bottom of the tank. He will come to the top when I am feeding, but that is it. He spends the whole rest of his day down there. He just seems overall less lively. It's almost like he is less energetic, if that makes any sense.Now, I haven't noticed any bloating or spikiness (like dropsy) - although the only other symptom I can think of is that he seems a littler thinner than usual.
I have been doing weekly 30% water changes, and today I tested the water and added another air stone (I am grasping at straws now)
Does anybody have any ideas? I know this is probably hard with only the 2 symptoms. Odd thing is, my other fish are perfectly healthy and happy.
I appreciate all your time and input! Thanks!
Ali
Ammonia Level 0 ppm
Tank size(How many Gals) 29 gal
How long has it been running 2 years
Nitrite 0 ppm
How often do you change the water and how much? weekly, 30%
Nitrate 10 ppm (before water change) 5 ppm (after water change)
Filtration Penguin 330
Ph Level 7
Water additives/conditioners Proper ph 7.0
What do you feed your fish? Tetra Fin Goldfish flakes and Bioblend
Medications add to the tank? none
How many fish in the tank and their size? 3, small (2-3 inches)
Any new fish added to the tank? no
Any unusual findings on the fish? Just staying at the bottom of the tank all the time , lifeless, lacking energy. Color is normal, appetite normal. Seems a little thin, but other than that, appearance is normal.