Discover aquarium tools, test kits, food and accessories and see the tanks using them.
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Find the gear behind the community's tanks.
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Plant fertilizers, liquid CO₂, reef dosing pumps, calcium & alkalinity
Tools, food, testing, and the finishing touches
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1,688 matching items · Most used first
OtherPiscine Energetics
Piscine Energetics PE Pellets Fry Starter is a 2-ounce fish food of ultra-small 250 µm pellets made with sustainably harvested PE Mysis, providing 48% protein for healthy growth of young fry and small-mouthed fish.
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OtherPiscine Energetics
A Nutritionally Complete Diet that Saltwater Fish Love! Made with Sustainably Harvested PE Mysis Packed with Omega Fatty Acids and Natural Color Enhancers Available in Three Pellet Sizes for All Fish Types PE Pellets are a palatable, highly digestible fish food specifically formulated to promote health and vitality in saltwater fish.
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OtherAquaZen
The AquaZen Pest Snail Catcher and Remover is a hand tool for catching pest snails in freshwater aquariums. Its telescoping handle reaches hard-to-access areas and captures bladder, ramshorn, and trumpet snails without chemicals or disturbing the aquascape.
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OtherSalifert
The Salifert pH Aquarium Test Kit is a colorimetric test for measuring pH in marine aquariums. The kit provides fast, easy-to-read results for routine pH monitoring.
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OtherReef Factory
The Reef Factory pH meter monitors aquarium pH 24/7 with notifications when pH leaves a safe range and remote monitoring via app or browser; it has ±0.1 pH accuracy, tracks historical pH data, and includes the probe, power supply, and resetting magnet.
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OtherSalifert
The Salifert pH Test Kit is sufficiently accurate to monitor pH fluctuations of approx 0.2 pH units. Range pH 7.4-8.6; approx 50 tests per kit. pH should not fluctuate more than approx 0.3 units during 24 hours and should preferably be kept between 8.0 and 8.2 for coral and calcareous algae growth.
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OtherAPI
The API pH Test Kit is a liquid test kit for freshwater aquariums that reads pH from 6.0 to 7.6. It includes supplies for 250 tests along with a test tube, color chart, and instructions for weekly pH monitoring.
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OtherHM Digital
The HM Digital PH-200 is a waterproof (IP-67, submersible and floating) pen-style pH/temperature meter measuring 0-14 pH with 0.01 resolution, featuring simultaneous temperature display, automatic temperature compensation, digital push-button calibration, and a replaceable SP-P2 sensor, suitable for checking tap water, RO/DI product water, hydroponics, and lab applications.
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OtherEHEIM
The Eheim pHcontrol+e is a WiFi-connected smart controller that monitors aquarium pH (sensor range 0-14) and regulates CO2 dosing through a magnetic valve to hold a target pH (control range 6-9), using carbonate hardness input in Smart mode. Offers day/night CO2 control, Eheim Digital linking (e.g. LEDcontrol+e), guided sensor calibration, calibration/water-test reminders, sensor replacement alerts and pH deviation warnings; 3-year warranty.
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OtherTwo Little Fishies
Two Little Fishies PhosBan Reactor 150 Foam Disks are replacement sponge pads (2 per set) specifically designed for the PhosBan Reactor 150. The black reticulated foam disks distribute water flow evenly, prevent media from escaping the reactor chamber, and can separate different filtration media (GFO, carbon, resins); proper fluidization is critical for phosphate removal in reef aquariums.
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OtherTwo Little Fishies
Two Little Fishies replacement O-ring for the PhosBan Reactor 150.
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OtherTwo Little Fishies
Two Little Fishies NPX screen for biopellets for use in the PhosBan Reactor.
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OtherTropic Marin
Tropic Marin Phos-Feed is a targeted coral nutrient supply inspired by natural biological principles; phosphate is dosed in a targeted manner as insoluble particulates — the most effective way to deliver this essential nutrient — without continuously increasing the phosphate concentration of the water column. Stimulates coral growth and natural skeletal development with bright colors; includes trace elements like iodide, fluoride, and bromide. Start with 1 mL per 50 US gallons daily (mix in 200 mL RO water, pour into high-flow area, ideally when lights are off); double to 2 mL after four weeks if phosphate 0.05-0.15 ppm is not reached; max 4 mL per 50 US gallons.
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OtherHanna Instruments
The Hanna Instruments HI713 Phosphate Low Range Checker is a handheld digital colorimeter for measuring phosphate in freshwater and saltwater aquariums. It reads phosphate from 0.00 to 2.50 ppm with 0.01 ppm resolution, giving more precise, objective results than visual color-comparison test kits.
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OtherNyos
A high-sensitivity colorimetric test kit from Nyos for measuring phosphate (PO4) in saltwater aquariums. It includes 50 tests with German-made reagents, a calibrated dropper, glass sample tubes, and a professionally calibrated color chart, with a measurement range of 0.025 to 1.0 mg/l for precise and reproducible results.
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OtherSalifert
The Salifert Phosphate Test Kit gives accurate, easy-to-read phosphate results in minutes. Trusted by discerning reefers, it includes easy-to-follow instructions; typically delivers 60 tests per kit.
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OtherHanna Instruments
The Hanna HI774 Checker HC is a handheld colorimeter that measures ultra-low-range phosphate in marine water from 0.00 to 0.90 ppm, with 0.01 ppm resolution and accuracy of ±0.02 ppm ±5% of reading using the ascorbic acid method; the pocket-sized unit includes two sample cuvettes, reagent for 10 tests, a AAA battery, and instructions, making digital phosphate testing easier and more accurate than color-comparison test kits.
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OtherHanna Instruments
The Hanna HI736 Checker HC is a handheld digital colorimeter for ultra-low-range phosphorus testing in saltwater, reading 0 to 200 ppb with 1 ppb resolution. It bridges the gap between chemical test kits and professional instruments, delivering accurate, affordable phosphorus monitoring.
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OtherBrightwell Aquatics
Brightwell Aquatics PhytoChrom is a concentrated suspension of six marine algae species sized 1-30 microns, rich in omega-3 fatty acids, chlorophyll, carotenoid pigments, vitamins, minerals, and amino acids. It feeds filter-feeding invertebrates such as soft corals, clams, sponges, tunicates, and tube worms, supporting health and coloration; no refrigeration required.
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OtherReef Nutrition
Reef Nutrition Phyto-Feast is a refrigerated blend of 6 marine microalgae (Isochrysis, Tetraselmis, Pavlova, Nannochloropsis, Thalassiosira, Synechococcus) with 1-15 micron particles, a super-nutritious food for filter feeders like corals, clams, and zooplankton.
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OtherTropic Marin
Tropic Marin Pro-Coral Phyton is a well-balanced plankton replacement suitable for all fine particle filter feeders in seawater aquaria. A premium algae blend provides invertebrates with trace elements and energy-rich carbohydrates in a form only found in the ocean.
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OtherPoseidon Reef Systems
The Poseidon Reef Systems PhytoTank CL System is a complete kit for growing copepods and phytoplankton, including two 3.5-liter glass reactors, integrated LED lighting, the PodNest combined aerator and copepod habitat, disposable culture bags and tubes, a 4-inch copepod sieve, and two-part fertilizer; starter cultures are not included.
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OtherPoseidon Reef Systems
The Poseidon Reef Systems PhytoTank L System is a 3.5 L phytoplankton culture reactor with integrated LED light and disposable culture bags for hassle-free cultures in 7-10 days; includes LED power supply, two-part fertilizer, culture pack, and aeration tube.
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OtherAPI
API PimaFix is an all-natural antifungal remedy that treats cottony growth, mouth and body fungus, reddening of fins, and internal/external bacterial infections in fish. Safe for freshwater, saltwater, reef, and planted aquariums, it will not harm the biological filter, alter pH, or discolor water, and can be combined with API MelaFix; dose 5 mL per 10 gallons daily for 7 days.
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OtherAmerican Marine
Single-use packets of precise 400mV ORP/Redox calibration fluid from American Marine for Pinpoint ORP probes. Occasional retesting with this solution keeps ORP probes accurate and helps determine when a probe is due for replacement.
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OtherAmerican Marine
American Marine's PINPOINT High-Precision pH Calibration Fluids are single-use packet reference solutions (available in pH 4.000, 7.000, and 10.000) for calibrating pH meters, monitors, and controllers. Each packet contains about 30 ml of solution — accurate to ±0.002 for pH 4 and 7, and ±0.005 for pH 10, referenced to NIST standard materials — and is intended to be discarded after one calibration.
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OtherAmerican Marine
The Pinpoint pH Monitor by American Marine is a continuous digital pH monitor for aquariums with a remote probe and easy two-point calibration. It provides constant at-a-glance pH readings to track stability.
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OtherAmerican Marine
53.0 mS standardized calibration fluid for calibrating PINPOINT salinity monitors and refractometers to 1.026 specific gravity (35 ppt). 2.2 fl oz (65 mL) bottle includes a conversion chart.
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OtherISTA
The ISTA Planaria Trap offers an efficient, chemical-free solution for removing planaria from freshwater aquariums. Made with high-quality glass, it uses a simple bait mechanism to lure and capture planaria: place bait such as bloodworm, shrimp, or high-protein food inside, close the cap, and set it near the substrate. The sleek design minimizes disruption to tank aesthetics.
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OtherEHEIM
Eheim Plant Tongs are spring-action maintenance tongs that let you rearrange plants, place corals, and feed bottom-dwelling fish without getting your hands wet. They feature a built-in trimmer and are available in 400mm (16") and 600mm (24") lengths for general freshwater aquarium maintenance.
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