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Return pumps, wavemakers, gyres
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Conditioners, RODI systems, marine salt mixes
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
SupplementationAlgaeBarn
AlgaeBarn NitroCycle is a clean, inorganic nitrogen source (ammonium chloride) that feeds nitrifying bacteria to establish the biofilter in new aquariums before adding livestock; it is easy to dose, does not foul water with phosphate or dissolved organics, and comes in a graduated double-neck bottle.
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OtherPython
These Python No Spill Clean & Fill extended gravel tubes (10", 20", 24", and 30" lengths with 2" diameter) replace or upgrade the standard 10" tube on the Python water-change system, making them ideal for taller aquariums. Each includes 2.5 feet of tubing and a female connector and interchanges easily with the existing system.
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OtherPython
The Python No Spill Clean and Fill Hook hooks the Python No Spill Clean and Fill water change fill tube on the edge of the aquarium so it cannot kink or slip out while the tank refills. It leaves hands free for other maintenance during refills and is constructed from American made, BPA, arsenic, and lead free materials.
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OtherPython
Python No Spill Extensions are extension hoses for the Python No Spill Clean and Fill water change system, screwing directly into the existing system with included male and female fittings for extra reach to anywhere in the house. Available in 10-foot and 20-foot lengths.
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OtherPython
The Python No Spill Clean and Fill is a faucet-driven water change system that drains and fills aquariums with no buckets or siphons: connect the gravel tube to any standard faucet (metal faucet connector with brass adapter included) and household water pressure creates a venturi effect that pulls water out of the tank and into the sink. A built-in control valve regulates flow; available in 25, 50, 75, and 100-foot hose lengths (1/2-inch ID tubing) with replacement fittings available.
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SupplementationRed Sea
Red Sea NO3:PO4-X is a liquid carbon-complex additive for saltwater and reef aquariums that feeds naturally occurring nutrient-reducing bacteria to lower and maintain nitrate and phosphate levels, helping prevent algae outbreaks. Sold in 500mL, 1000mL, and 5000mL bottles; it is 100% reef safe at the recommended daily dose of 1-3 mL per 25 gallons (do not overdose).
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OtherBulk Reef Supply
BRS Premium Nori Sheets are dried seaweed sheets sold in a 100-pack for feeding marine herbivores such as tangs, angelfish, rabbitfish, and blennies. They provide natural vegetable matter for grazing species and are typically attached to a feeding clip for tank-side grazing.
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Substrates & AquascapingUltum Nature Systems
Ultum Nature Systems Controsoil Black (Normal, ~5mm granules) is a Japanese aqua soil made of natural soil and volcanic ash that buffers water to a slightly acidic pH around 6.8, releases low ammonia for safer new-tank cycling, and provides nutrient-rich, no-rinse granules ideal for planted freshwater aquariums, fish, and shrimp.
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Substrates & AquascapingUltum Nature Systems
Normal Controsoil Brown is a natural aquarium soil substrate from Ultum Nature Systems in a brown tone for planted tanks. The nutrient-rich granules support plant root growth, and the normal grain size suits aquascaping layouts.
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Substrates & AquascapingAqua Forest Aquarium
North Black stone originates from the mountain cliffs of Norway; it has a dark gray hue with a moderately rough angular surface, ideal as a supporting material paired with driftwood layouts, and its rough surface helps moss attach easily. Inert; minimum order 10 lbs; approx. size 2-8 inches.
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SupplementationAquaforest
Aquaforest -NP Pro is a liquid polymer that feeds probiotic bacteria so they multiply and convert nitrate and phosphate into bacterioplankton that corals can absorb. The concentrated formula is dosed at 1 drop per 27 gallons daily; it is reef-safe but not shrimp- or plant-safe.
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OtherTropic Marin
Tropic Marin NP-Bacto Pellets are a biodegradable filter media made from natural biopolymers for use in pellet reactors or fluidized bed filters, designed for the biological removal of nitrate and phosphate. They promote colonization of nitrate- and phosphate-removing bacteria; the resulting nutrient-rich biomass either feeds corals and filter feeders or is skimmed out. Start with 50 mL per 100L (26 gallons), do not exceed 200 mL per 100L, and top up monthly as the media degrades; a protein skimmer is recommended for nutrient and gas exchange.
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SupplementationTropic Marin
Tropic Marin NP-Bacto-Balance is a liquid bacterial nutrient solution for reef aquariums that efficiently reduces nitrate and phosphate while maintaining the optimal carbon/nitrogen/phosphorus balance to avoid nutrient deficiency. Its balanced organic and inorganic nutrients (including K+ Elements trace elements) promote bacterial biomass that feeds corals, sponges, and filter feeders, improving coloration and growth; dose up to 1 mL per 25 gallons per day based on tank age, available in 500 mL and 1000 mL.
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Water PurificationTropic Marin
Tropic Marin NP-Bacto-Balance is ideal for keeping nitrate and phosphate low while maintaining the important balance between these key nutrients; its balanced composition of carefully selected organic and inorganic nutrients reduces nitrate and phosphate while improving coloration and growth of corals, sponges, and other filter feeders; prevents nutrient deficiency. Also contains the same trace elements of Tropic Marin K+ Elements in the same concentration. Dose 0.25 mL per 100 L per day for new/young tanks (0-1 yr), up to 0.5 for medium age (1-2 yr), 0.5-1 for mature (>2 yr); max 1 mL per 100 L per day; add to high-flow area at the beginning of the lighting cycle.
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Water PurificationTropic Marin
Tropic Marin NP-Bacto-Balance (500 mL) is ideal for keeping nitrate and phosphate low while maintaining the important balance between these key nutrients; its balanced composition of carefully selected organic and inorganic nutrients reduces nitrate and phosphate while improving coloration and growth of corals, sponges, and other filter feeders; prevents nutrient deficiency. Also contains the same trace elements of Tropic Marin K+ Elements in the same concentration. Dose 0.25 mL per 100 L per day for new/young tanks (0-1 yr), up to 0.5 for medium age (1-2 yr), 0.5-1 for mature (>2 yr); max 1 mL per 100 L per day; add to high-flow area at the beginning of the lighting cycle.
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Water PurificationTropic Marin
Tropic Marin NP-Bacto-Pellets is an easy-to-use organic filter media for pellet reactors for the effective biological removal of nitrate and phosphate; made of natural biopolymers that promote colonization and growth of nitrate- and phosphate-removing bacteria and other microorganisms. Nitrogen and phosphorus are extracted from the water; the resulting nutrient-rich biomass is flushed into the aquarium as a basic food resource for corals and other filter feeders or skimmed out. Helps corals show their brightest colors; ideal for reef or fish-only systems. For use in a pellet/fluidized reactor; soak pellets in boiling hot water 2 hours before use. Start with 50 mL per 100 L; double after four weeks if necessary; do not exceed 200 mL per 100 L; use a protein skimmer for nutrient removal and gas exchange; top up monthly to replace degraded material.
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Water PurificationTropic Marin
Tropic Marin NP-Bacto-Pellets (500 mL) is an easy-to-use organic filter media for pellet reactors for the effective biological removal of nitrate and phosphate; made of natural biopolymers that promote colonization and growth of nitrate- and phosphate-removing bacteria and other microorganisms. Nitrogen and phosphorus are extracted from the water; the resulting nutrient-rich biomass is flushed into the aquarium as a basic food resource for corals and other filter feeders or skimmed out. Helps corals show their brightest colors; ideal for reef or fish-only systems. For use in a pellet/fluidized reactor; soak pellets in boiling hot water 2 hours before use. Start with 50 mL per 100 L; double after four weeks if necessary; do not exceed 200 mL per 100 L; use a protein skimmer for nutrient removal and gas exchange; top up monthly to replace degraded material.
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FilterReef Octopus
The Reef Octopus NS80 is a hang-on-back nano skimmer with bubble diffuser, solid mounting bracket, and easy-to-use raiser pipe to control internal water level, all in a small footprint. Works well in small wet/dry sumps, nano tank overflows, and in-display aquariums; filtration handling: 25 gal light, 15 gal medium, 10 gal heavy; powered by OTP 200s pinwheel pump.
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OtherMarcoRocks
MarcoRocks NSA Powder is an all-natural aquascaping tool for covering or reinforcing visible joints in rock work. Made from 100% pure powdered MarcoRocks, it provides a perfect color match to rockscapes built from MarcoRocks Dry Rock and can be used with any reef-safe super glue, epoxy, or mortar to form strong joints. Contents: 3 lbs of pure, powdered MarcoRocks. Made in the USA.
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FilterFiji Cube
The Fiji Cube NSK-50 DC Pro Nano Protein Skimmer is a compact hang-on skimmer for 10-35 gallon saltwater aquariums, with an adjustable DC pump, height-adjustable mount for 6-8 inch water level, and detachable collection cup, footprint 2.96 x 3.15 in.
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OtherNT Labs
An NT Labs freshwater aquarium test kit bundle using accurate liquid drop tests for six essential water parameters: ammonia, nitrite, nitrate, pH, general hardness (GH), and carbonate hardness (KH). It provides up to 200 tests combined with color charts, instructions, and a test tube rack for routine water quality monitoring.
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FilterInnovative Marine
The Innovative Marine NUVO Aquarium Filter Sock w/ Holder (6 Pack, Desktop) contains six 200-micron felt filter socks custom-designed for NUVO Fusion desktop all-in-one aquariums. Each sock has a pre-molded hanger that rests on the aquarium rim for zero-bypass filtration and easy installation and removal, measuring 3.75 by 2.25 by 10 inches including the hanger.
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FilterInnovative Marine
The Innovative Marine NUVO Midsize Filter Sock 6-Pack includes custom-molded 200-micron felt filter socks with hangers that fit all Innovative Marine midsize all-in-one aquariums for mechanical filtration.
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Tank & FurnitureInnovative Marine
The Innovative Marine Nuvo EXT 25 Lagoon with Black APS Stand is a 25-gallon shallow lagoon aquarium (24"L x 20"W x 12"H, 8 mm ultra-thick low-iron glass) with a rear external overflow that preserves all internal display volume. It features diamond-edge polishing, black silicone seams, a laser-cut back panel, pre-drilled holes, a 2-pipe Herbie drain (1" drain bulkheads) with a solid glass overflow (7.9" x 3.5" x 5.9"), single flare Loc-Line return (3/4" return bulkhead, up to 400 GPH recommended), and a black aluminum APS stand (23.75" x 19.87" x 35.81"); a 1" gate valve, sump, return pump, and piping are required for operation.
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Substrates & AquascapingInnovative Marine
The Ecotech Marine Vectra M2 is a Mobius-ready DC return pump rated for up to 2000 GPH with 21.5 feet of max head pressure; it can be configured as a return pump (with calibration and Speed Lock) or a closed-loop circulation pump with EcoSmart flow modes, runs inline or submerged, and features QuietDrive technology, QuickCouple fittings, and battery-backup compatibility.
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Tank & FurnitureInnovative Marine
The Innovative Marine Nuvo EXT 30 Long Aquarium with Black APS Stand is a 30-gallon rimless display tank (36" x 15" x 13", 8 mm ultra-thick low-iron glass with diamond-edge polishing) featuring an external overflow that preserves full internal display volume. It uses a 2-pipe Herbie drain system (1" drain, 3/4" return bulkheads, up to 300 GPH recommended return) with a single flare Loc-Line return, and the bundle includes the black APS stand, bulkheads, and drain pipe. Requires a gate valve, sump, return pump, and piping.
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Substrates & AquascapingInnovative Marine
The Innovative Marine Nuvo EXT 30 Long is a 30-gallon rimless aquarium (36" x 15" x 13") with an all-glass external overflow that keeps all of the tank's internal volume free for aquascaping, and it features ultra-thick low-iron glass with diamond-edge polishing, black silicone seams, a laser-cut back panel, a quiet 2-pipe (Herbie) drain system with pre-drilled bulkheads, and a flare Loc-Line return. This bundle pairs the tank with the matching wood-finish APS aquarium stand.
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Tank & FurnitureInnovative Marine
The Innovative Marine Nuvo EXT 40 bundle pairs a 40-gallon reef-ready aquarium (24 x 20 x 19 inches, 8mm ultra-thick low-iron glass, diamond-edge polishing, black silicone seams) with a black anodized aluminum APS stand. Its external overflow (2-pipe Herbie drain, 1-inch drain and 3/4-inch return bulkheads, single flare Loc-Line return) does not consume display volume and makes the tank sump-ready. Bundle includes bulkheads, e-drain pipe, and return fittings; a 1-inch gate valve, sump, return pump (up to ~400 GPH recommended), and plumbing are required to operate.
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Substrates & AquascapingInnovative Marine
This Innovative Marine bundle pairs the Nuvo EXT 40 external-overflow aquarium (24" x 20" x 19", 40 gallons, 8mm ultra-thick low-iron glass with diamond-edge polishing) with the matching Wood APS cabinet stand. The EXT design keeps the overflow outside the tank so no display volume is lost, with a 2-pipe Herbie drain (1" bulkheads), 3/4" flare Loc-Line return, and pre-drilled holes for plumbing down to a sump, while the corrosion-proof aluminum APS stand assembles in minutes and includes a foam board set and adjustable shelf.
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FilterInnovative Marine
The Innovative Marine NUVO Roller is a manual fleece filter designed for NUVO all-in-one aquariums that replaces filter socks. The 200-micron fleece roll sits in the first chamber and is advanced by turning a knob when dirty, keeping the aquarium clear without washing socks.
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