Aquarium Fish Sale Promo Codes and Coupons December 2025

Aquarium Fish Sale

AquariumFishSale.com is an online retailer specializing in freshwater and saltwater fish, aquatic plants, and aquarium supplies. They offer nationwide shipping within the United States and provide a variety of species suitable for both beginners and experienced aquarists.

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Today's Aquarium Fish Sale discount codes

TOP PICK

10% off

1405 uses

high

worked about 1 month ago

10% Off Storewide (Excluded Sale Items) at Aquarium Fish Sale

10% off

259 uses

high

worked about 1 month ago

10% Off Storewide at Aquarium Fish Sale

10% off

1196 uses

high

worked about 1 month ago

10% Off Storewide at Aquarium Fish Sale

10% off

53 uses

high

worked about 1 month ago

10% Off Fish Tetra at Aquarium Fish Sale

Featured Aquarium Fish Sale Products

Farlowella Long Nose Catfish

Farlowella Long Nose Catfish The long nose farlowella is an unusual looking and prolific catfish from South America. The snout is often as long as an inch the the body is shaped like a twig for camouflage. Farlowellas tend to stick to the side of the fish tank and swim slowly from time to time in search of scraps. Scientific name: Farlowella acus Origin: South America Max size: 6 inches Lifespan: 6 years Food: Scavenger, flake, pellet Shipping Size: Approx. 3 to 4 inches

USD 12.89

Banjo Catfish

Banjo Catfish Banjo catfish are shaped like a banjo, with prehistoric appearing scales to complete the look. The knock on these peaceful scavangers is that they tend to just sit about the bottom of the fish tank until night when they troll for treats. As long as you do not expect a spectacular swimming demonstration these are very nice fish for the aquarium. Though the appearance is odd, banjo catfish is very common in South America. Scientific name: Bunocephalus coracoideus Origin: South America Max size: 6 inches Lifespan: 6 years Food: Scavenger, flake, pellet Shipping Size: Approx. 2 to 3 inches

USD 5.29

Rectangulus Triggerfish

Rectangulus Triggerfish: The Aggressive Icon The Rectangulus Triggerfish (Rhinecanthus rectangulus), also known as the Wedge-Tail Triggerfish, Reef Triggerfish, or Humu Humu Triggerfish (the State Fish of Hawaiʻi), is famous for its vibrant, complex pattern and highly territorial behavior. This species is easily identified by its brown to orange upper body, white belly, and bold black markings, including a distinctive black stripe from the eye to the anal fin and a black, wedge-shaped mark at the base of the tail (caudal peduncle). Growing up to 10-12 inches in length, the Rectangulus Triggerfish requires a minimum aquarium size of 120-180 gallons to accommodate its active swimming and aggressive temperament. As one of the most aggressive genera (Rhinecanthus), this fish should only be kept in a FOWLR (Fish-Only With Live Rock) system with other large, aggressive tankmates. It is known to rearrange rockwork, and owners must use caution as this fish can inflict a painful bite. Diet & Compatibility: Diet: This trigger is a voracious Carnivore that feeds on nearly all reef invertebrates in the wild, including sea urchins, mollusks, crustaceans, and worms. In the aquarium, it must be fed a varied, high-protein diet of meaty foods like clam, shrimp, squid, and krill. Teeth Care: It is essential to regularly provide hard-shelled, meaty foods (such as whole clams or cockles) to prevent its strong, crushing teeth from overgrowing, which can lead to feeding difficulties. Reef Compatibility: It is Not Reef Safe. This species will actively hunt and destroy all ornamental invertebrates (shrimp, crabs, snails, clams, urchins, etc.) and is likely to damage corals, making it unsuitable for a typical reef tank. Temperament: It is Aggressive and highly territorial. It should be kept singly and is often aggressive towards other triggers. Tankmates should be limited to large, robust, and equally aggressive species. Owners should exercise caution when performing tank maintenance. Quick Facts Scientific Name: Rhinecanthus rectangulus Primary Common Name: Rectangulus Triggerfish Other Common Names: Wedge-Tail Triggerfish, Reef Triggerfish, Humu Humu Triggerfish Origin: Indo-Pacific (including Hawaii) Max Size: 10-12 inches (25-30 cm) Temperament: Aggressive (One of the most aggressive triggers) Diet: Carnivore (Requires hard-shelled food) Minimum Tank Size: 120-180+ Gallons Reef Compatibility: Not Reef Safe

USD 33.98

Anglerfish

Anglerfish (Frogfish): The Luring Ambush Predator The Anglerfish, commonly referred to as Frogfish in the aquarium trade (genus Antennarius), is one of the marine world's most fascinating and challenging inhabitants. Known for its remarkable ability to blend into its surroundings, this fish is the ultimate ambush predator. The general classification of Antennarius sp. is often used because Frogfish can quickly change their color and pattern—mimicking the texture of sponges, rocks, or algae—making specific identification difficult. The Anglerfish is a master of camouflage, spending most of its life motionless on the substrate. Its defining feature is a modified first dorsal spine, the illicium, which acts as a "fishing rod." At the tip is the fleshy lure, or esca, which the fish wiggles to mimic a small worm, shrimp, or fish. When an unsuspecting meal is attracted close enough, the Anglerfish executes one of the fastest strikes known in the animal kingdom, inhaling its prey whole. Species in this genus vary in size; most popular aquarium types (like the Warty Angler or Striated Angler) grow to 6 to 8 inches (15-20 cm), but larger species like the Giant Angler (A. commerson) can reach over 15 inches (38 cm). Due to their predatory nature and low activity level, they are best suited for a dedicated, species-only aquarium with ample live rock or structure for perching, with a minimum size of 20 to 50 gallons, depending on the expected adult size. Diet & Compatibility: Diet: The Anglerfish is a dedicated Carnivore. The primary challenge for the aquarist is transitioning the fish from its natural diet of live prey to non-living, frozen foods. They must be trained to accept meaty items offered via feeding tongs, as they will not chase food through the water column. Weaning to Frozen: Start with gut-loaded live marine shrimp or small, marine-acclimated feeder fish. Gradually introduce frozen meaty foods (e.g., large chunks of squid, clam, shrimp, or fish flesh) by waving them in front of the Angler with tongs to simulate the lure's movement. Feeding Frequency: Anglerfish have a slow metabolism and require infrequent feeding. Adults should be fed only once or twice per week with a substantial meal. Overfeeding is a common cause of health issues and can cause the fish to fast for long periods. Reef Compatibility: With Extreme Caution. While Anglerfish generally ignore corals and sessile inverts, they are a significant danger to nearly all ornamental invertebrates (shrimp, crabs, snails) and any fish small enough to fit in their massive mouth, which can be up to their own body size. They are best housed with very large, fast-moving, non-aggressive fish, or alone. Handling Caution: Anglerfish are non-venomous but will inflate their bodies with air if netted and removed from the water, which can be fatal. Always transfer an Anglerfish using a submerged plastic container to avoid air ingestion. Quick Facts Scientific Name: Antennarius sp. (General Anglerfish/Frogfish) Primary Common Name: Anglerfish Other Common Names: Frogfish, Warty Angler, Painted Angler, Striated Angler Origin: Indo-Pacific (Widespread in tropical and subtropical waters) Max Size: Varies greatly; typically 6–15 inches (15–38 cm) Temperament: Aggressive / Predatory (Sessile Ambush Hunter) Diet: Carnivore (Must be trained onto frozen meaty foods) Minimum Tank Size: 20–50 Gallons (depending on adult size) Reef Compatibility: With Caution (Will eat all small fish and inverts)

USD 86.98

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Active Aquarium Fish Sale codes

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Exclusive single-use codes shared by our community (18 active codes).
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10% off

45 uses

high

worked 9 months ago

10% Off Fish Tetra at Aquarium Fish Sale

80% off

5 uses

medium

worked 9 months ago

Score 80% off with code

10% off

2 uses

medium

worked 8 months ago

Score 10% off with discount code

10% off

73 uses

low

worked almost 2 years ago

10% Off Storewide at Aquarium Fish Sale

More Aquarium Fish Sale Products

Black Triggerfish

Black Triggerfish: The Bold & Sleek Ocean Dweller The Black Triggerfish (Melichthys niger), also known as the Black Durgon, is a sleek and active species that brings a bold presence to any large marine aquarium. This handsome triggerfish has a solid black or dark gray body, which is elegantly outlined by a thin, striking white or blue line on its dorsal, anal, and caudal fins. Unlike many other triggers, the Black Triggerfish is known for its relatively peaceful and non-aggressive demeanor, making it a suitable choice for a community tank with other semi-aggressive fish. It is a non-stop, open-water swimmer that adds a dynamic energy to the aquarium. Its confident personality and clean, classic coloration make it a timeless and captivating addition to a well-established tank. Why the Black Triggerfish is a Great Choice: Elegant Appearance: Its sleek, dark body and contrasting fin outlines provide a beautiful and sophisticated look. Peaceful for a Trigger: It is one of the most docile triggers, making it suitable for larger community tanks. Active Swimmer: It adds a lot of energy and movement to the upper and middle sections of the aquarium. Hardy & Resilient: This is a very hardy species that is easy to acclimate and care for. Quick Facts Scientific Name: Melichthys niger Origin: Indo-Pacific Reefs, Hawaii Max Size: 12 inches Lifespan: 10+ years Diet: Carnivore. Primarily feeds on meaty foods such as shrimp, krill, and clams. Shipping Size: 2-4 inches

USD 163.98

Harlequin Tuskfish Wrasse

Harlequin Tuskfish: A Stunning & Hardy Reef Fish The Harlequin Tuskfish (Choerodon fasciatus) is a truly stunning and highly sought-after species that adds a touch of bold, vibrant color to any marine aquarium. Its brilliant appearance features a bright orange body with distinct blue horizontal stripes, a brilliant blue dorsal fin, and a face of intricate blue and white markings. The most unique feature of this fish is its prominent, protruding teeth, or "tusks." This species is known for its hardiness, intelligence, and active swimming behavior. It's an excellent choice for a fish-only with live rock (FOWLR) or large community tank with other semi-aggressive species. Why the Harlequin Tuskfish is a Great Choice: Exceptional Coloration: Its multi-colored pattern and unique features make it a true showstopper. Highly Hardy: This species is incredibly resilient and easy to care for, making it a perfect choice for intermediate hobbyists. Engaging Behavior: Its active nature and intelligence make it a rewarding fish to watch. Reef-Safe (with caution): While generally safe with corals, it may pose a threat to small invertebrates like snails, crabs, and shrimp. Important Note: The Harlequin Tuskfish can be territorial and aggressive, especially towards smaller, passive fish. It is a carnivorous predator that will eat small crustaceans. It is best to introduce it to the tank after establishing other, larger fish. Quick Facts Scientific Name: Choerodon fasciatus Origin: Western Pacific Ocean and Great Barrier Reef Max Size: 10 inches Lifespan: 10+ years Diet: Carnivore. A varied diet of high-quality frozen foods like shrimp, clams, and squid. Shipping Size: 2-4 inches

USD 120.59

Sunset Wrasse

Sunset Wrasse: The Active Yellow-Green Predator The Sunset Wrasse (Thalassoma lutescens), commonly known as the Banana Wrasse or Yellow-brown Wrasse, is a strikingly colored and highly energetic fish native to the Indo-Pacific. This species exhibits pronounced sexual and size-related color changes. Juveniles and initial phase (IP) females/males are predominantly bright yellow to yellow-green, often featuring reddish or pink lines on the face and body. Terminal phase (TP) males, or "supermales," undergo a dramatic transformation, developing a greenish-blue body, a pinkish-red head with irregular green stripes, and blue-tipped pectoral fins, truly living up to the "sunset" moniker. This is a large and robust wrasse, reaching up to 10 to 12 inches (25-30 cm) in the home aquarium, with wild specimens growing even larger. Due to its maximum size and constant, active swimming behavior, the Sunset Wrasse requires a minimum aquarium size of 125 to 150 gallons, with larger being strongly recommended. They are known for their speed and agility. Like all wrasses in the Thalassoma genus, the Sunset Wrasse is a skilled jumper; a tight-fitting, weighted lid is mandatory to prevent escape. It will also appreciate a soft, fine-grained sand bed (at least 3-4 inches deep) to burrow into for protection when stressed or for sleeping at night, though it may also choose to sleep under a rock ledge or coral branch. Diet & Compatibility: Diet: The Sunset Wrasse is a strict Carnivore and a natural predator. In the wild, it feeds on small benthic invertebrates, including crustaceans, snails, brittle stars, and polychaete worms. In the aquarium, it requires a diet of varied, high-quality, meaty frozen foods, such as enriched mysis shrimp, brine shrimp, chopped clam, squid, and prepared marine pellets/flakes. Due to its high metabolism, it should be fed 2-3 times per day. Reef Compatibility: It is NOT Reef Safe or Reef Safe With Extreme Caution. While it will not generally bother corals, it is a significant threat to nearly all small ornamental invertebrates typically found in a cleanup crew, including shrimp, snails, and crabs. It will also consume bristle worms and small pyramid snails. It is best suited for a Fish Only With Live Rock (FOWLR) system. Temperament: It is Semi-Aggressive to Aggressive. The Sunset Wrasse is boisterous and territorial, especially as a terminal phase male. It should only be housed with large, active, and similarly semi-aggressive tankmates that can hold their own, such as large tangs, large angelfish, puffers, and triggerfish. It must be kept singly, as it will aggressively fight other Thalassoma wrasses. Special Notes: As a protogynous sequential hermaphrodite, all individuals start as female, with the dominant female in a group transforming into the terminal male. Quick Facts Scientific Name: Thalassoma lutescens Primary Common Name: Sunset Wrasse Other Common Names: Banana Wrasse, Yellow-brown Wrasse, Lime Green Wrasse Origin: Indo-Pacific (Widespread) Max Size: 10-12 inches (25-30 cm) Temperament: Semi-Aggressive / Aggressive (Very Active) Diet: Carnivore (Must be fed multiple times daily) Minimum Tank Size: 125-150+ Gallons Reef Compatibility: No / Extreme Caution (Will prey on invertebrates)

USD 129.98

Valentini Puffer

Valentini Puffer - Canthigaster valentini

USD 47.97

10% off

38 uses

low

worked almost 2 years ago

10% Off Storewide at Aquarium Fish Sale

20% off

56 uses

low

worked almost 3 years ago

20% Off Select Items at Aquarium Fish Sale

20% off

48 uses

low

worked over 4 years ago

20% Off Everything at Aquarium Fish Sale

20% off

78 uses

low

worked over 3 years ago

20% Off Select Items at Aquarium Fish Sale

Sustainability Score

62%

While the company maintains adequate standards for fish care and shipping, there is limited transparency regarding their supply chain and breeding practices. Their environmental initiatives are basic, focusing mainly on water conservation in their facility. They lack comprehensive sustainability reporting and clear commitments to reducing their carbon footprint. Some improvement shown in recent packaging choices, but significant room for enhancement in overall environmental practices and worker conditions documentation.

About Aquarium Fish Sale

4.0 (2)

FAQs

: Yes, we typically run major sales during Black Friday, Cyber Monday, and during the spring season (March-April). Holiday discounts can reach up to 30% off select items.
: We match prices from authorized online retailers within the US. Price match requests must be submitted before purchase and the competitor's item must be identical and in stock.
: Spring and early summer are optimal times to purchase tropical fish as shipping conditions are ideal. We also offer special pricing during these seasons to coincide with breeding cycles.
: Yes, our AquaRewards program offers points for every purchase, which can be redeemed for discounts. Members also get early access to sales and exclusive monthly offers.
: In the past month, Aquarium Fish Sale has launched 0 new promo coupons for shopper discounts. This indicates that Aquarium Fish Sale does not provide regular opportunities for customers to save money on their purchases.
: On average, Aquarium Fish Sale provides 4.5 discount coupons each month. Based on historical data, the average time between Aquarium Fish Sale coupon releases every 7 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking Aquarium Fish Sale website regularly, subscribing to email newsletters, and following them on social media.
: Aquarium Fish Sale is offering 5 working store-wide codes, however they are also offering 13 additional discount codes with a best discount of 10% off
: terra.coupons is the #1 provider of discount codes for your favorite retailers, such as Aquarium Fish Sale. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest Aquarium Fish Sale discount codes.

Curated by

Massam A.

Discount Finder

Last updated December 2025

Hailing from the scenic Pacific Northwest, Massam is a former chef turned deal-hunting enthusiast. When he's not tracking down the latest discounts, you'll find him exploring hiking trails or experimenting with sustainable living. He brings the same attention to detail from his culinary days to curating the best promotions for you.

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From the blog

2025-04-29

Aquarium Fish Sale Promo Codes and Coupons December 2025