Fish Mox Amoxicillin Fish Antibiotic – 250mg & 500mg Capsules
Regular price $24.99
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Fish Mox Amoxicillin is a powerful, broad-spectrum fish antibiotic designed to treat common bacterial infections in freshwater and saltwater aquarium fish. Each capsule contains pharmaceutical-grade amoxicillin in a convenient, accurately measured dose.
Available in 250mg and 500mg strengths, Fish Mox helps fight harmful bacteria responsible for fin rot, tail rot, bacterial gill disease, columnaris, popeye, mouth rot, infected wounds, skin ulcers and other susceptible bacterial infections in ornamental fish.
Fish Mox attacks bacterial infections at their source by interfering with the formation of the bacterial cell wall. This makes it an essential aquarium medication when fish display clear symptoms of a bacterial disease.
What Does Fish Mox Treat?
Fish Mox is formulated for the treatment of bacterial diseases caused by organisms susceptible to amoxicillin. It is commonly selected for aquarium fish showing signs associated with:
- Fin rot and tail rot
- Bacterial gill disease
- Columnaris and cotton-mouth infections
- Popeye caused by bacterial infection
- Mouth rot and bacterial mouth infections
- Red sores and open skin ulcers
- Infected cuts, wounds and damaged fins
- Bacterial skin infections
- Internal bacterial infections
- Secondary infections following injury or stress
Common Signs of a Bacterial Fish Infection
Bacterial infections can spread quickly and become serious when left untreated. Fish Mox may be appropriate when fish show symptoms consistent with a susceptible bacterial infection, including:
- Frayed, deteriorating or discolored fins
- Red streaks or inflammation on the body and fins
- Open sores, lesions or ulcers
- Cloudy, swollen or protruding eyes
- White or gray damage around the mouth
- Inflamed or discolored gills
- Unusual swelling or abdominal bloating
- Loss of appetite and reduced activity
- Fish remaining near the bottom of the aquarium
- Rapid breathing or difficulty swimming
Powerful Amoxicillin Antibiotic for Aquarium Fish
Amoxicillin is a penicillin-class, broad-spectrum antibiotic that targets susceptible gram-positive and certain gram-negative bacteria. It works by disrupting bacterial cell-wall development, weakening the bacteria and stopping the infection from continuing to spread.
This antibacterial action makes Fish Mox a valuable treatment for many external and internal bacterial infections affecting ornamental aquarium fish. Prompt treatment can help control infection before it causes extensive tissue damage or spreads to other vulnerable fish.
Why Fish Mox Is an Essential Aquarium Antibiotic
- Powerful broad-spectrum antibacterial activity
- Contains amoxicillin, a trusted antibiotic ingredient
- Treats multiple susceptible bacterial fish diseases
- Helps control both external and internal bacterial infections
- Useful for fin rot, tail rot, ulcers and infected wounds
- Convenient capsules containing a measured amount of amoxicillin
- Available in two strengths for different aquarium-treatment needs
- Suitable for ornamental freshwater and saltwater fish
- Available in practical 30-count and 100-count bottles
- An important addition to a prepared aquarium-care supply kit
Available Fish Mox Strengths and Sizes
| Strength | Quantity | Active Ingredient |
|---|---|---|
| 250mg | 30 Capsules | Amoxicillin |
| 250mg | 100 Capsules | Amoxicillin |
| 500mg | 30 Capsules | Amoxicillin |
| 500mg | 100 Capsules | Amoxicillin |
Fish Mox 250mg Capsules
Fish Mox 250mg provides 250mg of amoxicillin in every capsule. It is available in bottles containing either 30 or 100 capsules and offers a convenient strength for aquarium owners who require a lower measured quantity of amoxicillin.
Fish Mox 500mg Capsules
Fish Mox 500mg contains 500mg of amoxicillin per capsule. Available in 30-capsule and 100-capsule bottles, this higher-strength option is convenient for larger treatment volumes and aquarium-care requirements.
Freshwater and Saltwater Fish Antibiotic
Fish Mox can be used as part of a bacterial treatment program for susceptible ornamental species maintained in freshwater or saltwater aquariums. This includes many tropical fish, cichlids, goldfish, koi and marine ornamental fish.
Whenever possible, affected fish should be treated in a dedicated hospital or quarantine aquarium. Separating sick fish allows closer observation, protects beneficial bacteria in the primary aquarium and reduces unnecessary exposure among healthy fish.
Important Treatment Information
Before treatment, confirm that the condition is bacterial. Amoxicillin treats susceptible bacterial infections; it does not treat fungal diseases, parasites or viral infections. Remove activated carbon, chemical filtration and UV sterilization when required by the product directions because these may reduce the amount of medication available in the water.
Maintain strong aeration and monitor water quality throughout treatment. Complete the recommended treatment course even if visible symptoms begin to improve. Follow the directions supplied with the product and obtain aquatic veterinary guidance when the diagnosis is uncertain or the infection is severe.
Product Details
- Product: Fish Mox
- Active ingredient: Amoxicillin
- Medication class: Penicillin-class antibiotic
- Product type: Broad-spectrum fish antibiotic
- Strengths: 250mg and 500mg per capsule
- Package sizes: 30 and 100 capsules
- Form: Capsules
- Target: Susceptible bacterial infections
- Environment: Freshwater and saltwater aquariums
- Intended use: Ornamental aquarium fish
Storage
Store Fish Mox in its original, tightly closed container in a cool, dry location. Protect the capsules from moisture, direct sunlight and excessive heat. Keep out of reach of children and animals.
Frequently Asked Questions
Is Fish Mox an antibiotic?
Yes. Fish Mox is an amoxicillin antibiotic formulated for treating susceptible bacterial infections in ornamental aquarium fish.
What infections does Fish Mox treat?
Fish Mox is used against bacterial conditions such as fin rot, tail rot, bacterial gill disease, infected wounds, skin ulcers, mouth infections, popeye and other infections caused by bacteria susceptible to amoxicillin.
What is the active ingredient in Fish Mox?
Each capsule contains amoxicillin. Customers can select either 250mg or 500mg capsules.
Can Fish Mox treat fin rot and tail rot?
Fish Mox may be used to treat fin rot and tail rot when the condition is caused by bacteria susceptible to amoxicillin. Correct diagnosis is important because fin damage may also result from poor water quality, injury or other diseases.
Can Fish Mox be used for freshwater fish?
Yes. Fish Mox is suitable for susceptible bacterial infections affecting ornamental freshwater aquarium fish.
Can Fish Mox be used for saltwater fish?
Fish Mox may also be used for susceptible bacterial infections in ornamental saltwater fish when used according to the supplied product directions.
What sizes are available?
Fish Mox is available in 250mg and 500mg strengths, with either 30 or 100 capsules per bottle.
Does Fish Mox treat parasites or fungal infections?
No. Amoxicillin is an antibacterial medication. It does not eliminate parasites, viruses or true fungal infections.
For ornamental fish use only. Not for human use or for fish intended for human consumption.
Your order of 50$ or more gets free standard delivery.
- Standard delivered 4-5 Business Days
- Express delivered 2-4 Business Days
Orders are processed and delivered Monday-Friday (excluding public holidays)
members enjoy free returns.







