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Plant fertilizers, liquid CO₂, reef dosing pumps, calcium & alkalinity
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In community tanks
Chosen by aquarists
5,380 matching items · Most used first
OtherOcean Nutrition
Ocean Nutrition Formula Two small pellets (7 oz, 1.2 mm); soft and moist slow-sinking food with fresh seafood, spirulina, kelp, and garlic for herbivorous and omnivorous saltwater fish. Palatable and easy to digest for finicky eaters.
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OtherOcean Nutrition
Ocean Nutrition Formula Two Flakes are a gourmet flake food with extra algae for herbivorous and omnivorous saltwater fish. Made in the USA with fresh seafood, marine algae, spirulina, and garlic, they support health and coloration with appropriate protein content and no artificial colors or preservatives. 2.5 oz jar.
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Substrates & AquascapingBuce Plant
Foundation Rock - Coralline (20LB) by Marco Rocks is a natural calcium carbonate rock cut to offer a smooth, flat single surface; used under rock work at the boundary layer between the glass and rock display so the second layer of the scape safely floats above the bottom layer, promoting healthy flow around the rock work and over the substrate. Stable, architecturally sound, and highly porous; can be siliconed to the glass, or placed flat side up for a shelf look. 20-pound box in Coralline color.
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Substrates & AquascapingBuce Plant
Foundation Rock - Natural (40LB) by Marco Rocks is a natural calcium carbonate rock cut to offer a smooth, flat single surface; used under rock work at the boundary layer between the glass and rock display so the second layer of the scape safely floats above the bottom layer, promoting healthy flow around the rock work and over the substrate. Stable, architecturally sound, and highly porous; can be siliconed to the glass, or placed flat side up for a shelf look. 40-pound box in Natural color.
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FilterAquaReady
The AquaReady FR-1E Fluidized Media Reactor is a polished acrylic up-flow reactor compatible with carbon and GFO, rated up to 250 gallons for GFO or 150 gallons for carbon, with 1/2- or 3/4-inch hose barb inlet/outlet.
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OtherOXO
The OXO Good Grips Frag Cutting Board is a durable cutting board for setting up a coral fragging station. It is made from durable, non-porous, odor-resistant polypropylene that resists deep scratches, has non-slip edges to keep it in place, and edge grooves that collect liquids to reduce mess.
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OtherBrightwell Aquatics
Brightwell Aquatics FragRecover is an all-natural herbal coral dip that aids tissue regeneration and recovery of coral frags after cutting, safe for SPS, LPS, and soft corals.
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OtherCaribSea
CaribSea FragZone coral mounts; aragonite-based rubble (~2 inches, 9-12 pieces, 2.25 lbs) with a natural mature reef look that blends into established rockscapes. Infused with spored bacteria; environmentally friendly.
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OtherSan Francisco Bay Brand
San Francisco Bay Brand Freeze Dried Betta Fish Food is an all-natural freeze-dried bloodworm food with 53.6% protein, providing daily nutrition for betta fish and other small or finicky feeders.
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OtherHikari
Hikari Freeze-Dried Bio-Pure Brine Shrimp (0.42 oz) is a vitamin-rich freeze-dried fish food made with pharmaceutical freeze-drying techniques for a close-to-fresh product. It is great for rounding out nutrition from pellets or flakes, high in natural fatty acids, and will not cloud the water.
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OtherHikari
Hikari Freeze-Dried Bio-Pure Spirulina Brine Shrimp is a pharmaceutical freeze-dried food that stays close to fresh without freezing or refrigeration; the vitamin-rich spirulina brine shrimp reduces stress and stress-related diseases, won't cloud water, and is free of harmful bacteria and parasites.
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OtherV2O Aquarium Foods
V2O Aquarium Foods Fresh Frozen Krill is a 7 oz frozen food sourced from Alaskan Pacific krill (Euphausia pacifica). It is frozen uncooked to preserve natural vitamins, pigments, and marine proteins, making it an excellent treat for nearly all types of tropical fish.
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OtherV2O Aquarium Foods
V2O Aquarium Foods Fresh Frozen Krill Pacifica (1 lb) is sourced from Alaska and frozen in its fresh, uncooked state; it is an excellent treat for nearly all types of tropical fish, preserving natural vitamins, pigments, and marine proteins.
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OtherV2O Aquarium Foods
V2O Aquarium Foods Fresh Frozen Silversides (7 oz) are individually quick frozen whole silversides with stabilized vitamin C, providing excellent nutrition for carnivorous fish and invertebrates like groupers, triggers, and morays.
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Water PurificationAPI
API Aquarium Salt for freshwater aquariums; made from evaporated sea salt to promote fish health, improve gill function, and add essential electrolytes lost during water changes. Dose 1 rounded tablespoon per 5 gallons.
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OtherRod's Food
Rod's Food Freshwater Large Mouth Blend is a frozen food of ultra fresh human-grade seafood (freshwater shrimp, Lake Victorian perch, crawfish, krill, peas) for Oscars, firemouths, catfish, and other large meat eaters, with 1/4-3/4 in particles.
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OtherAPI
The API Freshwater Master Test Kit is a comprehensive liquid test kit that measures the key water parameters of freshwater aquariums: pH, high-range pH, ammonia, nitrite, and nitrate. It provides accurate color-comparison readings so aquarists can monitor the nitrogen cycle and maintain healthy water conditions.
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OtherSan Francisco Bay Brand
San Francisco Bay Brand Freshwater Multi-Pack is a 24-cube frozen fish food assortment with 6 cubes each of Freshwater Frenzy, Emerald Entrée, Bloodworms, and Spirulina Brine Shrimp for all freshwater tropical fish at every feeding level.
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OtherRod's Food
Rod's Food Freshwater Small Mouth Blend frozen food (6 oz) designed for discus and other small-mouthed freshwater community fish; a mix of particle sizes made from ultra-fresh human-grade seafood with color enhancers. Also great for bettas.
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OtherAPI
An API salicylate-based liquid test kit that measures total ammonia from 0 to 8 ppm in both freshwater and saltwater aquariums, with separate color charts for each water type. The reagents perform about 130 tests, helping aquarists detect toxic ammonia early during tank cycling or from overfeeding and inadequate filtration.
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OtherAPI
Copper test kit for freshwater and saltwater aquariums that measures total copper (free and chelated) from 0 to 4.0 ppm with 90 tests per kit; essential for monitoring therapeutic copper levels when treating external parasites in fish.
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OtherAPI
API Freshwater/Saltwater Nitrate Test Kit measures nitrate levels from 0 to 160 ppm in both fresh and saltwater aquariums. The kit includes test solution bottles, a capped test tube, and color charts for up to 90 tests, helping prevent poor water quality and unwanted algae growth through weekly monitoring.
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SupplementationFritz Aquatics
Fritz-Zyme TurboStart 900 is a live nitrifying bacteria product containing the same proven strains as FritzZyme 9 but at 15 times the concentration. It reduces fish loss from toxic ammonia and nitrite and completely cycles aquariums in five days or less, and is available in 1, 4, 16, 32, and 128 oz sizes.
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Substrates & AquascapingAqua Forest Aquarium
Frodo Stone is a highly sought-after stone from Poland with a unique rugged texture and 'cracking' pattern, colors varying from brownish to gray. It is mostly inert with minimal impact on water chemistry; great for Iwagumi style and with wood; available in Regular, Large, and X-Large mixes.
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Substrates & AquascapingAqua Forest Aquarium
Frodo Stone sets are pre-configured sets of the highly sought-after stone from Poland with unique rugged texture and cracking pattern (brownish to gray), great for Iwagumi style and with wood. Available for tanks from 5 to 100 gallons: 30W/mini M, 30C/45P, 60P, 90P, and 120P sets; pictures are examples only, not WYSIWYG.
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OtherSan Francisco Bay Brand
San Francisco Bay Brand Frozen Beefheart (30 cubes, 3.5 oz) is an all-natural frozen protein supplement with 8.9% crude protein for freshwater carnivores like discus, oscars, cichlids, catfish, and aquatic turtles.
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OtherSan Francisco Bay Brand
San Francisco Bay Brand Frozen Beefheart Plus (30 cubes, 3.5 oz) is a vitamin-fortified frozen fish food for medium to large freshwater carnivores; it combines beef heart (trimmed of fat), brine shrimp, and daphnia with vitamins, minerals, and natural pigments to support growth and coloration.
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OtherSan Francisco Bay Brand
San Francisco Bay Brand Frozen Bloodworms are frozen bloodworms in convenient cubes that freshwater and marine fish find irresistible. Each cube is a single-serving portion of high-protein nutrition that encourages feeding in finicky fish.
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OtherSan Francisco Bay Brand
San Francisco Bay Brand Frozen Bloodworms Flat Pack is an all-natural frozen fish food made from Chironomus plumosus with no fillers. Collected and packaged daily to retain natural food value, it promotes growth, coloration, energy, and vigor in discus, bettas, eels, loaches, and other community freshwater fish.
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OtherV2O Aquarium Foods
V2O Aquarium Foods Frozen Bloodworms (3.5 oz) are jumbo-sized bloodworms triple-processed through a purification stage for maximum freshness, with stabilized vitamin C; suitable for tropical freshwater and marine fish, thaw and feed in a high flow area.
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