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Fish Mox™ – Amoxicillin 250 mg – 30 Capsules

$33.99 Regular price $43.99
Current Expiration Dates View the currently listed product families and date
Current listed expiration Selected Fish and Bird Product Families The applicable collections currently display the date shown here. 08/2027
Fish Mox & Mox Forte 08/2027
Fish Mox Clavulanate 08/2027
Fish Flex & Flex Forte 08/2027
Fish Flox & Flox Forte 08/2027
Fish Doxy 08/2027
Fish Zole & Zole Forte 08/2027
Fish Pen & Pen Forte 08/2027
Fish and Bird Zithro 08/2027
Fish Cin 08/2027
Fish Flucon 08/2027
Fish Sulfa Forte 08/2027
Fish Fungus 08/2027
Fish Levo 08/2027
Fish Min 08/2027
Inventory notice: Expiration dates may vary by supplier shipment, manufacturing batch, package quantity, strength, or variation. The date printed on the physical product received is the final product-specific expiration date.
View complete expiration information
U.S. Shipping & Delivery Review processing and estimated carrier transit times
United States Shipping Only Eligible orders are accepted and shipped only within the U.S.
Approximately One Business Day Most eligible in-stock orders are prepared after authorization.

Estimated Transit Times — When Available at Checkout

Standard & USPS
  • Free Standard Shipping 7–10 days
  • USPS Priority Mail 2–5 days
  • USPS Ground Advantage 2–15 days
FedEx Services
  • FedEx Ground 5–7 days
  • FedEx 2Day 2 days
  • FedEx Overnight Next business day
Please note: Processing time is separate from carrier transit time. Delivery estimates begin after the carrier accepts the package and are not guaranteed. Final services, prices, and estimates are displayed during checkout.
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Fish Mox™ – Amoxicillin 250 mg – 30 Capsules

Fish Mox™ provides amoxicillin 250 mg capsules in a convenient 30-capsule bottle for expressly labeled ornamental and aquarium-fish applications.

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Each capsule contains a clearly identified strength of 250 mg of amoxicillin. This compact 30-capsule package provides a smaller-count alternative to the separately available 100-capsule Fish Mox option.

The source product is listed as USP grade and manufactured in the United States. It is intended only for the non-human species and applications expressly identified on the current physical product label.

With more than 16 years of experience serving aquarium keepers, FishFlexFishMox is committed to clear product information, dependable sourcing, careful United States order processing, and responsive customer support.

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Fish Mox Product Details

  • Product name: Fish Mox™
  • Active ingredient: Amoxicillin
  • Strength: 250 mg per capsule
  • Package quantity: 30 capsules
  • Product format: Capsules
  • Vendor: Fish Mox Fish Flex.com
  • Grade: Listed as USP grade
  • Country of manufacture: Listed as manufactured in the USA
  • Intended application: Expressly labeled ornamental and aquarium fish
  • Current listed expiration: 08/2027
  • Shipping coverage: United States only

Always verify the complete physical product label before opening, handling, or using Fish Mox. Confirm the active ingredient, strength, capsule quantity, intended species, expiration date, lot information, storage requirements, warnings, and current manufacturer instructions.

Amoxicillin 250 mg Per Capsule

Each Fish Mox capsule is identified as containing 250 mg of amoxicillin.

The clearly displayed active ingredient and strength help distinguish this product from aquarium products containing different ingredients, strengths, physical formats, or package quantities.

Before placing an order, confirm:

  • That amoxicillin is identified as the active ingredient;
  • That the listed strength is 250 mg per capsule;
  • That the selected option contains 30 capsules;
  • That the physical product format is capsules;
  • That the intended ornamental-fish application matches the current physical label;
  • That the displayed price and package quantity are correct;
  • That the available expiration information meets your purchasing requirements; and
  • That all applicable warnings, cautions, and storage instructions have been reviewed.

Do not select an aquarium product based only on the Fish Mox name. Always verify the complete product title, active ingredient, strength, capsule count, physical format, intended application, and current physical label.

Convenient 30-Capsule Bottle

This product option includes one bottle containing 30 Fish Mox capsules.

The clearly identified 30-capsule package provides a compact option while maintaining the same listed strength of 250 mg per capsule.

Before completing checkout, confirm that the selected variant, cart, and order confirmation display:

  • Fish Mox™;
  • Amoxicillin 250 mg;
  • 30 Capsules;
  • Capsules as the physical product format;
  • One bottle unless another package configuration is expressly stated;
  • The correct product price; and
  • The correct United States shipping destination.

The product title, selected variant, cart, checkout page, order confirmation, and physical bottle determine the exact strength, format, and quantity included with the purchase.

30 Capsules vs. 100 Capsules

Fish Mox amoxicillin 250 mg is offered in separately identified 30-capsule and 100-capsule package options.

  • 30 Capsules: One bottle containing 30 capsules;
  • 100 Capsules: One bottle containing 100 capsules.

Both package options contain the same listed active ingredient and strength of 250 mg per capsule. The primary differences are the total number of capsules, product price, packaging, inventory batch, and current availability.

This description is specifically prepared for the 30-capsule option. Customers seeking the larger quantity should select the separately identified 100-capsule variant.

Never rely only on a product image when confirming package quantity. Review the selected variant, complete product details, cart, checkout page, and order confirmation before purchasing.

Fish Mox vs. Fish Mox Forte

Fish Mox and Fish Mox Forte share amoxicillin as their identified active ingredient but differ in listed strength.

  • Fish Mox: Amoxicillin 250 mg per capsule;
  • Fish Mox Forte: Amoxicillin 500 mg per capsule.

Available products within the Fish Mox collection may include:

  • Fish Mox amoxicillin 250 mg – 30 Capsules;
  • Fish Mox amoxicillin 250 mg – 100 Capsules;
  • Fish Mox Forte amoxicillin 500 mg – 30 Capsules;
  • Fish Mox Forte amoxicillin 500 mg – 100 Capsules; and
  • Other clearly identified supplier or package options when available.

A 250 mg product should not be confused with a 500 mg product. Always verify the complete strength, capsule quantity, active ingredient, and selected option before purchasing.

Browse the complete Fish Mox & Mox Forte (Amoxicillin) collection to compare available strengths and package quantities.

Understanding the Fish Mox Listing

Fish Mox is the product-family name used for this amoxicillin-based ornamental-aquarium product.

This 30-capsule option should be identified using the following essential product details:

  • Product family: Fish Mox;
  • Active ingredient: Amoxicillin;
  • Strength: 250 mg per capsule;
  • Physical format: Capsules; and
  • Package quantity: 30 capsules.

Products containing different active ingredients, strengths, formats, or package quantities should not be treated as interchangeable simply because they appear within the same broader aquarium-products category.

USP-Grade Product

This Fish Mox product is listed as USP grade.

The physical bottle and product label supplied with the order remain the final product-specific references for:

  • The complete product name;
  • The active ingredient;
  • The strength per capsule;
  • The total capsule count;
  • The manufacturer or supplier;
  • The intended species and application;
  • The lot or batch number;
  • The expiration date;
  • The storage requirements; and
  • All applicable warnings and cautions.

Review the complete physical packaging before opening, handling, or using the product.

Manufactured in the USA

Fish Mox is listed as manufactured in the United States.

Packaging design, bottle shape, cap design, label layout, branding placement, manufacturer information, and other visual details may change between production batches.

Always review the physical product supplied with the order to confirm that the active ingredient, strength, capsule quantity, intended application, lot information, expiration date, storage instructions, and warnings match the product ordered.

Current Listed Expiration: 08/2027

The current listed expiration date for Fish Mox is 08/2027.

Expiration dates may change when new supplier shipments or manufacturing batches are received. The expiration date printed on the physical bottle supplied with the order is the final product-specific expiration date.

The 30-capsule and 100-capsule variants may come from separate production or inventory batches and may therefore display different lot numbers, label details, packaging, or expiration dates.

A specific production batch, lot number, packaging design, or expiration date is not guaranteed unless it has been expressly confirmed for the applicable order.

Customers who require expiration confirmation before purchasing may contact us through our Contact Us page.

Product Label and Packaging

Fish Mox should arrive in its original, clearly labeled bottle or supplier-approved packaging.

The physical packaging may identify:

  • The complete Fish Mox product name;
  • Amoxicillin as the active ingredient;
  • 250 mg as the strength per capsule;
  • 30 capsules as the package quantity;
  • The expressly labeled ornamental-fish application;
  • The manufacturer or supplier;
  • The lot or batch number;
  • The expiration date;
  • Storage information; and
  • Important warnings and cautions.

Manufacturers and suppliers may update packaging details without prior notice, including:

  • Bottle shape, size, or color;
  • Cap or safety-seal design;
  • Label layout;
  • Typography;
  • Logo or branding placement;
  • Manufacturer or supplier information;
  • Lot-number placement; and
  • Expiration-date placement.

The product received may look different from an older photograph while still matching the essential active ingredient, strength, capsule quantity, physical format, supplier, and intended application displayed on the current product page.

Inspect Fish Mox After Delivery

Before opening or using Fish Mox, inspect the shipping package, bottle, physical label, safety seal, capsules, package quantity, lot information, and expiration date.

Do not use the product if:

  • The shipping package or product bottle is substantially damaged;
  • The bottle is broken, open, or leaking;
  • A required safety seal appears missing or compromised;
  • The physical product label is missing or unreadable;
  • Amoxicillin is not identified as the active ingredient;
  • The strength is not 250 mg per capsule;
  • The physical product format does not match the capsule listing;
  • The package quantity does not match the selected 30-capsule option;
  • The expiration date has passed;
  • The capsules appear damaged, contaminated, or inconsistent with the listing; or
  • The supplied product does not otherwise match the order confirmation.

Keep the product, shipping box, shipping label, packing materials, and order documentation. Report any concern promptly through our Contact Us page and include clear photographs.

Important Ornamental-Fish Notice

Fish Mox is intended only for aquarium fish, ornamental fish, pet fish, or another non-food aquatic species expressly identified on the current physical product label.

Unless the official physical label expressly states otherwise, this product is:

  • For expressly labeled aquarium and ornamental-fish applications only;
  • Not intended for human use;
  • Not intended for human consumption;
  • Not offered as a human prescription medicine;
  • Not intended for fish raised for human consumption;
  • Not intended for food-producing aquatic animals; and
  • Not a substitute for professional aquatic-veterinary evaluation.

Never Use Fish Mox for Humans

Fish Mox and all other aquarium products offered through FishFlexFishMox must never be taken, administered, or used by humans.

FishFlexFishMox does not provide human medical advice, human diagnoses, human prescriptions, human dosage recommendations, pharmacy services, or human treatment plans.

Anyone experiencing a human health concern should contact a licensed physician or pharmacist.

In the event of accidental exposure, ingestion, or another emergency, contact an appropriate poison-control resource or emergency service immediately.

Do Not Automatically Use Fish Products for Other Animals

A product identified for ornamental fish should not automatically be used for dogs, cats, birds, livestock, poultry, or another animal species.

Even when an active-ingredient name appears familiar, appropriate animal care may depend on the animal species, size, weight, age, general condition, health history, environmental conditions, other products being used, and qualified veterinary evaluation.

Use Fish Mox only for an expressly identified species and application unless a qualified veterinarian provides appropriate direction and the use is permitted by applicable law.

Responsible Aquarium Care

Visible changes or health concerns in aquarium fish may have multiple possible causes, including water-quality issues, temperature instability, filtration problems, overcrowding, stress, nutritional concerns, parasites, injuries, or other aquarium conditions.

The presence of visible signs does not automatically mean that an amoxicillin-based product is appropriate.

Before selecting or using a specialized aquarium product:

  • Test aquarium water quality;
  • Review water temperature and recent fluctuations;
  • Check filtration and aeration;
  • Observe affected fish carefully;
  • Review recent aquarium changes or newly introduced fish;
  • Confirm appropriate stocking conditions;
  • Consider whether sensitive plants, invertebrates, or other aquarium organisms are present;
  • Read the complete current physical product label;
  • Confirm the expressly labeled species and application;
  • Avoid combining products without professional guidance; and
  • Consult a qualified aquatic veterinarian when the underlying concern is uncertain.

Follow the Exact Physical Product Label

Use and handle Fish Mox only according to the current physical product label, manufacturer information, applicable warnings, and qualified veterinary guidance.

Do not rely on:

  • Information copied from an older product page;
  • Instructions supplied for Fish Mox Forte 500 mg;
  • Information provided for the 100-capsule option;
  • Instructions supplied by another manufacturer or vendor;
  • Information associated with another active ingredient;
  • Advice from an unverified online source; or
  • Information intended for humans or another animal species.

FishFlexFishMox customer support can assist with factual product information displayed on our website but cannot diagnose an animal, prescribe a product, recommend individualized use, or create a treatment plan.

Avoid Unapproved Product Combinations

Do not combine Fish Mox with other fish antibiotics, aquarium medications, parasite-control products, supplements, water treatments, or chemical products unless the combination is supported by the applicable product information or directed by a qualified veterinarian.

Using multiple aquarium products without appropriate professional guidance may create product interactions, affect aquarium water conditions, interfere with filtration, affect sensitive aquarium organisms, reduce product effectiveness, or make the underlying concern more difficult to identify.

Storage and Handling

Store Fish Mox according to the information supplied on the current physical product label and packaging.

Unless different instructions are supplied, keep the product:

  • In its original labeled bottle;
  • With the container tightly and securely closed;
  • At the temperature stated on the physical label;
  • Protected from excessive heat and moisture;
  • Away from direct sunlight;
  • Away from children and unauthorized users;
  • Away from pets and other animals;
  • Separate from food and human medicines; and
  • In a secure location that helps preserve product integrity.

Do not transfer the capsules into an unlabeled container. Retain the original packaging for product identification, warnings, expiration information, manufacturer information, and lot details.

United States Shipping Only

FishFlexFishMox accepts and ships eligible orders only within the United States. International shipping is not available.

Available United States shipping methods, costs, and estimated delivery times are displayed during checkout based on the destination, package size, product eligibility, order contents, and carrier availability.

Review our Customer Service page for additional order-processing and shipping information.

Returns and Product Integrity

For safety and product-integrity reasons, opened, used, unsealed, altered, or partially used products are generally not eligible for return.

An eligible return must normally remain unused, unopened, in its original condition, in its original labeled packaging, complete with all included materials, and authorized before return shipment.

Review our Return Policy before returning any product. Unauthorized returns may be refused.

Why Buy Fish Mox from FishFlexFishMox?

More Than 16 Years of Experience

Fish Flex Fish Mox.com has more than 16 years of experience serving aquarium keepers seeking specialized ornamental-fish and aquarium-care products.

Learn more about our store on the About Fish Flex Fish Mox.com page.

Clearly Identified 250 mg Strength

The active ingredient, strength, capsule format, package quantity, and intended application are clearly displayed to help customers identify the correct option.

Convenient 30-Capsule Bottle

This option provides one clearly identified bottle containing 30 amoxicillin 250 mg capsules.

Clear Variant Selection

The 30-capsule and 100-capsule quantities are presented as separate options so customers can verify the selected package before checkout.

Careful United States Order Processing

Eligible orders are prepared carefully after payment authorization is received and any required order verification is completed.

Responsive Customer Support

Our support team can assist with factual product information, variant selection, expiration questions, order status, United States shipping, tracking, eligible returns, and damaged-order concerns.

Explore Related Products and Collections

Browse the complete Fish Mox & Mox Forte (Amoxicillin) collection to compare available strengths and package quantities.

Explore our broader Fish Antibiotics collection to compare additional active ingredients, strengths, physical formats, and package quantities.

Review our Fish Antibiotic Expiration Dates collection for current listed expiration information.

Order Fish Mox with Confidence

Fish Mox™ – Amoxicillin 250 mg – 30 Capsules provides a clearly identified 250 mg strength in a convenient 30-capsule bottle for expressly labeled ornamental and aquarium-fish applications.

With more than 16 years of experience, detailed product information, careful United States order handling, and responsive customer support, FishFlexFishMox is committed to providing aquarium keepers with a dependable and professional shopping experience.