Appears to be a bacterial issue. Firsthand, I would look at water quality and review diet. If water conditions are poor enough, the bacteria can bloom and overrun even the healthiest of fish. Some typical causes are :
- Poor nutrition.
- Injury, such as open wounds, cuts or scrapes.
- Other fish annoying him
- Stress
- Weakness
- Introduced into the aquarium through a contaminated water source
Many bacteria are naturally resistant to specific drugs, so using the proper type of antibiotic is of the utmost importance. For example, gram-positive bacteria are often unaffected by tetracycline and streptomycin, while gram-negative bacteria may be unaffected by ampicillin, penicillin, erythromycin, and sulfa drugs. Sometimes all the vitamins, proper nutrition and clean water are just not enough. Sometimes a fish’s natural immune system needs a helping hand.
A 90minute bath with ruby rally pro will probably be a good start followed by QT and treatment with maracyn 2.
Its important to remember that every medication you use depletes the water of oxygen so adding an airstone for gas exchange would also be recommended
Foods:
Spirulina brine shrimp
Nori seaweed basted with garlic extract
LRS Herbivore diet
Formula 2 flake and frozen
Hikari Marine cuisine
Hikari Mega marine algae
Mysis shrimp
small plankton
Add selcon vitamins to the food 2-3X per week and garlic extract on alternating days for immunity system health and overall stamina
