It's hard to say whether the fish is just overweight or sick. You don't list any symptoms or problems in the tank.
Fish can appear as that one does simply by overeating.
Any white stringy feces? Reclusive behaviour? Heavy breathing? Is the fish still eating?
Have you lost any fish recently?
Added any new fish?
What are you feeding? How often? How much?
How long has the tank been set up?
What are the water parameters on the tank?
The black spot is likely just something that occasionally occurs with cichlids, believed to be caused by a diet heavy in spirulina or stress.
Kim
Fish can appear as that one does simply by overeating.
Any white stringy feces? Reclusive behaviour? Heavy breathing? Is the fish still eating?
Have you lost any fish recently?
Added any new fish?
What are you feeding? How often? How much?
How long has the tank been set up?
What are the water parameters on the tank?
The black spot is likely just something that occasionally occurs with cichlids, believed to be caused by a diet heavy in spirulina or stress.
Kim