Aquarium Care Guides
996 articles- Titanium Heater: A GuideA titanium heater uses an unbreakable, corrosion-resistant tube suited to saltwater and aggressive tanks, usually needing an external contro
- Heater with External Controller: A GuideAn external controller monitors temperature with a separate probe and cuts power if the heater fails, adding a fail-safe layer.
- Mini Nano Heater: A GuideA mini nano heater is a low-wattage unit for small tanks; for 6 gallons or less a 25 W or smaller heater is recommended.
- Nano Internal Filter: A GuideA nano internal filter is a small submersible unit for tiny tanks, giving gentle flow and basic filtration for shrimp and bettas.
- Biopellet Reactor: A GuideA biopellet reactor tumbles biodegradable pellets to fuel bacteria that consume nitrate and phosphate, exported via a protein skimmer.
- Prefilter Sponge: A GuideA prefilter sponge slips over a filter intake to catch debris and protect fry and shrimp while adding bacterial surface area.
- Algae Turf Scrubber: A GuideAn algae scrubber grows algae on a lit screen to absorb nitrate and phosphate, exporting nutrients when the algae is harvested.
- Fluidized Bed Filter: A GuideA fluidized bed filter suspends fine sand or media in moving water, exposing every grain to oxygen for high-density biological filtration.
- Wet/Dry Trickle Filter: A GuideA wet/dry filter trickles water over air-exposed media so aerobic bacteria get maximum oxygen, giving strong biological filtration.
- Sump Filter: A GuideA sump is a secondary tank below the display aquarium that hides equipment, adds water volume, and improves system stability.
- CO2 Drop Checker GuideHow a CO2 drop checker uses a pH indicator and a reference solution to show dissolved CO2 by color, why it lags, and how to use one.
- CO2 Bubble Counter GuideHow a CO2 bubble counter shows the injection rate in a planted aquarium, why bubble counting is only approximate, and how to set one up.
- Fish Net GuideWhat an aquarium fish net is, how a hand net catches fish and debris, the main mesh types, and how to choose and use one with low stress.
- Aquarium Lid and Cover GuideWhy an aquarium lid prevents fish jumping out, reduces evaporation and heat loss, the main cover types, and how to choose and fit one.
- Media Reactor GuideHow a media reactor forces water through chemical filter media such as carbon, GFO or biopellets, the fluidized design, and how to run one.
- Calcium Reactor GuideHow a calcium reactor uses injected CO2 to dissolve calcium-carbonate media and replenish calcium and alkalinity in reef aquariums.
- Aquarium Timer GuideHow aquarium timers automate lighting and equipment on a daily cycle, the mechanical, digital and smart types, and how to set one up.
- Surface Skimmer GuideHow an aquarium surface skimmer removes the oily surface film that blocks gas exchange and light, and how to size, place and maintain one.
- Aquarium Thermometer GuideHow aquarium thermometers measure water temperature, the main glass, digital and liquid-crystal types, and how to choose and place one.
- Gravel Vacuum (Substrate Siphon) GuideHow a gravel vacuum siphons debris from aquarium substrate during water changes, the physics behind it, and how to size and use one safely.
- Paludarium GuideA paludarium is a vivarium combining aquatic and terrestrial sections in one enclosure, suited to plants and animals of wetland, swamp and m
- Hardscape-Only / Diorama Aquascaping GuideHardscape-only and diorama aquascapes build the entire scene from rock and wood with little or no planting, using complex structures and per
- Lake Tanganyika Cichlid Setup GuideA Lake Tanganyika cichlid setup is a rift-lake biotope with sandy bottom, stacked rock structures and hard alkaline water, home to a highly
- Rio Negro Blackwater Biotope GuideA Rio Negro blackwater biotope recreates the tannin-stained, acidic waters of the world's largest blackwater river using leaf litter, branch
- Biotope Aquarium GuideA biotope aquarium replicates a specific natural habitat, matching its fish, plants, substrate, hardscape and water chemistry to a real geog
- Walstad Method GuideThe Walstad Method is a low-tech planted aquarium approach using a soil substrate, no CO2 and minimal filtration, with plants performing bio
- Jungle Style Aquascaping GuideJungle style aquascaping uses dense, untrimmed plant growth and large leaves with little visible hardscape to create a wild, overgrown look.
- Dutch Aquarium Style GuideThe Dutch style treats the aquarium as an underwater garden of densely planted, contrasting plant groups arranged in terraced rows, with lit
- Nature Aquarium (Amano Style) GuideThe Nature Aquarium style, pioneered by Takashi Amano, recreates natural landscapes underwater using grouped plants, wood and stone with asy
- Iwagumi Aquascaping Style GuideIwagumi is a minimalist Japanese aquascaping style built around an odd number of carefully placed stones, with each rock assigned a defined
- RO/DI Water System GuideHow a reverse osmosis and deionization system produces ultra-pure water, what it removes, and why it suits marine and planted tanks.
- Dosing Pump GuideHow peristaltic dosing pumps deliver precise volumes of liquids, why they suit reef and planted tanks, and how to calibrate and maintain the
- Aquarium Chiller GuideHow an aquarium chiller removes heat from tank water, which livestock need cooling, and how it compares with simpler cooling methods.
- UV Sterilizer GuideHow an aquarium UV sterilizer uses UV-C light to inactivate free-floating microbes and algae, why flow rate matters, and how to maintain the
- Automatic Fish Feeder GuideHow automatic fish feeders dispense food on a schedule, which foods suit them, and how to use one reliably during a vacation.
- Aqua Soil and Active Substrate GuideWhat aqua soil is, how active substrates feed plants and buffer water chemistry, their lifespan, and how to set them up and maintain them.
- Water Conditioner GuideWhat a water conditioner does, how it neutralizes chlorine and chloramine, why chloramine needs treatment, and how to dose it correctly.
- Aquarium Test Kit GuideWhat aquarium test kits measure, how reagents work, the difference between strips and liquid kits, and how often to test for a healthy tank.
- Protein Skimmer GuideHow a protein skimmer (foam fractionator) removes dissolved organics from saltwater, the main design types, and how to size, install and mai
- Wave Maker and Powerhead GuideHow aquarium powerheads and wave makers create directional flow, why circulation matters, and how to choose, place, and maintain them.
- CO2 Injection System GuideHow CO2 injection supports planted-tank growth, the difference between pressurized and DIY systems, and how to dose safely without harming f
- Air Pump GuideHow aquarium air pumps drive surface agitation and gas exchange, when extra aeration is needed, and how to install them safely with a check
- Planted Tank LED Light GuideHow high-output planted-tank LEDs drive photosynthesis, how to balance light with CO2 and nutrients, and how to set intensity and photoperio
- Freshwater LED Light GuideHow LED lighting works for freshwater community tanks, what photoperiod to use, and how to display fish while supporting easy plants without
- Inline Heater GuideHow external inline heaters warm water in a canister filter return line, keeping hardware out of the display, and how to install and run the
- Submersible Heater GuideHow submersible aquarium heaters with thermostats keep tropical tanks stable, how to size wattage to volume, and how to place and maintain t
- Internal Power Filter GuideHow submersible internal power filters work, where they fit, and how to choose, position, and maintain them in small to medium aquariums.
- Sponge Filter GuideHow air-driven sponge filters work, why they are gentle and safe for fry and shrimp, and how to run and clean them in nano and breeding tank
- Canister Filter GuideHow external canister filters work, their large media capacity, and how to choose, plumb, and service them for medium to large aquariums.
- Hang-on-Back Filter GuideHow hang-on-back (HOB) power filters work, their strengths and limits, and how to size, install, and maintain them for small to medium aquar