help- sick lemon tetra???

jenw

New Fish
May 7, 2006
7
0
0
Asheville, NC
#1
I have a lemon tetra that is acting kind of weird. Yesterday he started trying to defend a spot he liked, or so we thought. today he is in that same spot but now he is doing flippy nose dives and just acting crazy when no other fish are really around. does anyone know if this sounds like he is sick or just acting crazy.

he goes to near the surface of the water then he looks like is is kind of having a seizure until he gets to near the bottom and when he is just staying in one place he just flaps his fins harder than the rest of the lemons he looks like he is panting for air or something, but the other 8 lemons are not doing this

My water perimeters have not changed one bit
ph=7
temp=80
ammonia=0
nitrite=0
nitrate= less than 5

I am getting ready to do my weekly water change today. I do 15 gallons per week on a 75 gall tank.
 

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