Aquarium Care Guides
996 articles- Pond Aeration and Dissolved Oxygen: Daily Cycle, Stratification and Aerator PlacementHow dissolved oxygen rises and falls through a pond day, why summer ponds stratify, what diffusers, fountains and waterfalls do, where to pl
- Heating a Koi Pond: Reasons, Target Temperatures, Energy and RisksWhy some koi keepers heat their ponds, which winter temperatures sources document, how heat pumps compare with resistive heaters on energy,
- Pond Sludge and Detritus: Sources, Anaerobic Zones and Bottom CleaningWhere garden-pond sludge comes from, why anaerobic sediment produces hydrogen sulfide, which bottom-cleaning methods extension sources suppo
- Finding and Fixing Pond Leaks: Evaporation, Diagnosis, Repair and Safe Topping UpHow to tell evaporation from a leak, locate the leak with a marked water level, know the usual failure points, choose a repair category, and
- Pond Bottom Drains and Surface Skimmers: How Gravity-Fed Koi Ponds Stay CleanWhat bottom drains and surface skimmers do in a koi pond: gravity-fed circulation, solids and anaerobic sediment removal, floating debris an
- Koi Varieties and Classification: Gosanke and BeyondOrigin of nishikigoi in Niigata and the classical variety groups: Kohaku, Sanke, Showa, Utsurimono, Bekko, Asagi, Shusui, Koromo, Hikarimono
- Testing Garden Pond Water: Parameters, Daily Cycles and SeasonsWhich parameters to test in an outdoor pond, why pH and oxygen swing between dawn and afternoon, how seasons change the risks, and how to re
- Quarantining New Koi: Duration, Temperature and KHV ScreeningWhy every new koi needs a separate quarantine system, how long to hold it, why the water is kept at a temperature that lets koi herpesvirus
- Protecting Pond Fish from Herons and Other PredatorsHow herons, kingfishers, raccoons, mink and cats hunt garden ponds, how to read the signs of an attack, and which deterrents extension and w
- Pond Plants: Water Lilies, Marginals and OxygenatorsPlanting zones of a garden pond, water lilies and marginals, submerged oxygenators, baskets and soil, surface coverage for algae control, an
- Pond Construction Basics: Liners, Depth and ShelvesNeutral overview of garden pond construction: siting, depth for overwintering fish, marginal shelves, liner categories (flexible sheets, pre
- Spring Start-Up of a Garden PondHow to bring a garden pond back into service after winter: restarting the biofilter, first ammonia and nitrite tests, temperature-led feedin
- Feeding Koi by Water TemperatureKoi metabolism follows water temperature. Published feeding thresholds, why wheat-germ-type diets suit cool water, protein and frequency by
- Stocking a Garden Pond: How Many Koi and GoldfishStocking rules of thumb from extension and veterinary sources, growth of koi and goldfish, oxygen and ammonia limits, why overstocked ponds
- Garden Pond Filtration: Mechanical, Biological and UV StagesHow garden pond filters work: mechanical, biological and UV stages, gravity versus pressurised designs, sizing by volume and fish load, turn
- Plant-Eating Fish and Protecting Planted TanksWhich aquarium fish eat or uproot plants, from silver dollars and goldfish to cichlids and plecos, which plants hold up better, and the plan
- Terrestrial Plants with Roots in the AquariumHow pothos, philodendron, lucky bamboo and peace lily are grown with roots in tank water, what studies show about nutrient uptake, and their
- Aquatic Moss Care: Attachment, Light, Algae and TrimmingHow to attach Taxiphyllum, Vesicularia and Fissidens mosses, how much light and CO2 they need, why moss traps algae and debris, how to trim
- Floating Plants in AquariumsSalvinia, Pistia, frogbit, duckweed and red root floater: how floating plants take up nutrients and air CO2, how they shade the tank, how to
- Tissue-Culture (In-Vitro) Aquarium PlantsHow in-vitro aquarium plants are produced, why they arrive free of pests and algae, how to remove the gel and plant small portions, and why
- Emersed-Grown Plants: The Transition to Submersed GrowthWhy nurseries grow aquarium plants above water, how aerial and submerged leaves differ, why emersed leaves die back after planting, typical
- Allelopathy in Planted Aquariums: What the Evidence ShowsChemical inhibition between aquatic plants, algae and cyanobacteria: known allelochemicals, laboratory and field evidence, why it is hard to
- Light Spectrum, PAR and Photosynthesis in Aquarium PlantsWhat PAR, PPFD and PUR measure, where chlorophyll absorbs light, why a Kelvin rating says little about plant growth, how intensity falls wit
- Acclimating Marine Invertebrates and CoralsWhy invertebrates need slower salinity, temperature and pH matching than fish, how drip and light acclimation work, what coral dips can and
- Aquatic Turtle Diet: Age, Calcium and Feeding FrequencyHow many aquatic turtles shift from animal food to plants as they age, how calcium, vitamin D3 and UVB connect, vitamin A deficiency, feedin
- Filtration and Water Care for Aquatic Turtle TanksWhy turtles foul water faster than fish, how veterinary sources size filtration, basking platforms and water depth, bare-bottom versus grave
- Fish Lifespan and Ageing: From Annual Killifish to KoiRecorded lifespans of common aquarium and pond fish from AnAge, how temperature and growth rate affect ageing, and the age-related changes d
- Albino, Leucistic and Other Colour Morphs in Aquarium AnimalsHow albinism and leucism differ genetically, what is known about vision and light sensitivity in albino fish, and how morphs arise in corydo
- Deformities in Aquarium Fish: Genetic, Nutritional and Environmental CausesWhy fish develop curved spines, missing gill covers and other skeletal deformities: inherited factors, vitamin C deficiency, temperature dur
- The Aquarium Microbiome and BiofilmWhich microbes live in aquarium filters, on surfaces and on fish skin, how biofilm forms and feeds grazing shrimp, and what studies show abo
- Calcium and Magnesium in Freshwater AquariumsHow calcium and magnesium make up water hardness, how to convert mg/L as Ca to mg/L as CaCO3 and dGH, their roles for fish, moulting crustac
- Osmoregulation in Freshwater and Marine FishHow freshwater and marine teleosts balance water and salt through gill ionocytes, kidney and gut, why sudden salinity change kills, and the
- Indian Monsoon Stream Biotope AquariumWet and dry regime of Indian subcontinent streams, Western Ghats and Ganges–Brahmaputra fauna (barbs, loaches, Badis, Dario), rock and leaf
- Flow Meters for Aquarium PlumbingHow paddle-wheel, ultrasonic and electromagnetic flow meters work, why turnover matters, how a falling flow reading reveals clogging or pump
- Seagrass Aquarium GuideKeeping Halodule, Thalassia and Halophila seagrasses: how they differ from macroalgae, why sediment depth and oxygen matter, light and nutri
- The Reef Tank Ugly Phase and MaturationWhy new reef tanks go through films of diatoms, cyanobacteria, green algae and dinoflagellates, what drives each, why patience works better
- Cycling a Reef Tank with Dry RockHow dry base rock differs from live rock, why it can release phosphate, how an ammonia source and seeding start nitrification, and why dry-r
- Keeping Octopus in Aquaria: Lifespan, Escape-Proofing, Enrichment and WelfareOctopus husbandry from research and public-aquarium sources: short lifespans and senescence, escape risk, copper and ink hazards, feeding, e
- Jellyfish Kreisel Tanks: Flow Design, Moon Jelly Life Cycle and HusbandryWhy jellyfish need kreisel or pseudokreisel tanks, how the laminar flow and outflow screen work, the polyp-to-medusa cycle of Aurelia aurita
- Coldwater Marine and Tidepool Aquaria: Cooling, Oxygen, Species and Collection RulesHow temperate tidepool aquaria differ from tropical marine tanks: cooling, oxygen, light and algae, which intertidal animals cope with capti
- Mangroves in Marine Aquaria: Red Mangrove Refugium GuideGrowing Rhizophora mangle from propagules: how red mangrove handles salt, light, substrate and root needs, what the evidence says about nutr
- Seahorse Aquarium Guide: Species, Tank, Temperature and FeedingKeeping H. erectus, H. reidi and H. kuda: tall calm tanks with holdfasts, published temperature ranges, Vibrio and mycobacteria risks, froze
- Macroalgae Refugium: Nutrient Export, Lighting and HarvestingHow a macroalgae refugium removes nitrogen and phosphorus, how Chaetomorpha, Caulerpa and Gracilaria differ, why Caulerpa can crash, and how
- Smart Plugs and Aquarium Automation BasicsWhich aquarium loads can safely run on a smart plug (lights, CO2 solenoid), which must keep their own control (heaters, filter pumps), fail
- Sensor Drift and Recalibration Schedules for Aquarium ProbesWhy pH, oxygen, temperature and conductivity probes drift, how USGS separates drift from fouling, which deviations justify recalibration, an
- Setting Alarm Thresholds for Aquarium MonitoringHow to derive warn and critical bands for temperature, ammonia, nitrite, pH, oxygen and salinity from extension data, add rate-of-change ala
- Aquarium Data Logging and Trend AnalysisWhy a logged series beats a single test, how often to record each parameter, what daily pH and oxygen cycles look like, and how to tell a fa
- Water Level and Leak Sensors for AquariumsFloat, optical, capacitive, ultrasonic and conductive level sensors compared, how leak detectors work, and the fail-safe principles that kee
- Aquarium Temperature Sensors: Placement and AccuracyHow thermistors, platinum resistance sensors, thermocouples and digital bus thermometers differ in accuracy, where to place a probe in a str
- Dissolved Oxygen Sensors: Galvanic, Polarographic and OpticalHow galvanic, polarographic and optical dissolved-oxygen sensors work, why membrane probes need flow, how to calibrate in saturated air or w