Lethargic chalk bass

[obireef]

I just started taking care of my son’s 40 gallon tank and have a very lethargic chalk bass that hides in corners and behind the heater, sometimes in a vertical position. It has been normal and active for 6 months. Doesn’t seem to have ich or cloudy eyes. All water parameters are fine. Only recent change is a new cleaner shrimp. Any suggestions are appreciated

 

[nezw0001]

Could you please list current parameters? Parameters are fine mean different things to different folks.

 

[obireef]

Could you please list current parameters? Parameters are fine mean different things to different folks.

Salinity=1.025, Alkalinity = 9.0, pH = 8.2, Nitrate = 10, Nitrite = 0, Ammonia = 0, Ca = 400, Temp = 79