My Pearl Gourami Female Is Sick!please Helppp!

[serbanmm]

My aquarium: -60 litters
-heater, white light bulb, water filter
-fishes: 1 pearl gourami, 2 sunset gourami and a betta male
-5 plants
-water temperature around 82 Fahrenheit(28 Celsius)
-water parameters: 0 ammonia, 0 nitrites, 0 nitrates, PH:7.8

I have a problem with my preferred female Pearl Gourami .She just lays around the middle of the tank and doesn't swim much (usually she’s very active and swim a lot).
But the real problem is that she doesn’t eat anymore, she tries but I she can’t! Whenever he tries to eat he pretty much swims up to the food and acts like he’s going to eat it but just swallow the food and immediately she spit it out! So she tries to eat but something makes it to spit food out! Either she doesn’t like that food anymore, or is something physical! Usually she was very active and ate very, very well, now she doesn’t swim much and not eating almost anything! That behaviour starts with 3-4 days ago!

PS: She doesn’t have until now any physical signs of disease! Honestly, I had so many problems with my fishes until now (I bought it with 3 months ago) as I think to give up with this hobby!

 

[WILDER]

Are the plants live plants.
What your tap nitrate reading.

Does she look bloated or thin.
Does she look darker of pale in colour.
is she resting on plants, or resting on the substrate to one side.
Can she maintain her balance in the water.
What does it look like when the fish goes to the toilet.


The third type of infection produced by Aeromonas is by no means the least. This form is often the most virulent (potent) and can be rapidly fatal. This insidious form does not produce any noticeable external ulcers. The most notable feature is a behavioral change in which the infected fish generally become listless and lethargic. Some fish may lose color or appear darker. The fish do not feed, frequently seem off balance and may sink to the bottom laying on their sides. The course of the disease is rapid, and by the time the behavioral changes are noticed, the entire population of a tank may succumb, sometimes in a day or so. This is an internal infection, with the bacteria being found in the kidneys and blood of these fish. The bacteria produce potent toxins that account for the severity of the disease.