Care basics · Health and trouble · Tank-mate chart · Tank mates by species · Shrimp and snails
Tropical Fish Care Guide
Cycling a tank, temperature, acclimation, ich, algae and tank mates. Check tropical fish care against care data for 23 species and published sources.
Care data for 23 speciesTank-mate compatibilityWater care and healthFree, no sign-up
Where is your fishkeeping going wrong?
Most problems with tropical fish come from water, temperature, disease or tank mates. This site explains fish care with reasons, based on care data for each species and published sources.
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CARE BASICS
Care basics
Care basicsTM-12Tropical Fish for Beginners: How to Choose Fish, What You Need, Typical Costs and the First MonthTropical fish for beginners: compare 7 species by size, temperature, pH, temperament and group size. What you need, 60 cm tank costs, the first month and common mistakes.
Care basicsTM-13How to Cycle a Fish Tank: How Long Filter Bacteria Take, the Steps, When to Add Fish, and Fixes for Cloudy Water or Weak FishHow to cycle a fish tank, explained through filter bacteria and the nitrogen cycle. Steps, timing, when and how many fish to add, testing, and fixes for cloudy water.Care basicsTM-14Tropical Fish Water Temperature: Chart for 23 Species, Setting It for Tank Mates, Heater Wattage, Summer Heat, Winter, Power Outages and How Goldfish and Medaka DifferTropical fish water temperature chart for 23 species. Setting it for tank mates, heater wattage by volume, thermometers, summer cooling, winter, outages and goldfish.Care basicsTM-15How to Acclimate Fish: Matching Temperature and Water, Drip and Cup Method Steps and Timing, and Notes for Shrimp, Medaka and GoldfishHow to acclimate fish, step by step with times for temperature and water. Drip vs cup method, why shrimp need longer, why bag water stays out, medaka and goldfish.02
HEALTH & TROUBLE
Health and trouble
Health and troubleTM-16Ich Treatment and Causes: Temperature, Salt Baths and Medication in Order, Look-Alike Diseases, Tanks with Shrimp, Plants or Corydoras, and Goldfish or MedakaIch treatment from university and fisheries sources: the life cycle and temperature, telling ich from look-alikes, heat, salt or medication, shrimp tanks and goldfish.Health and troubleTM-17Aquarium Algae Control: Telling Brown, Green, Black Beard and Blue-Green Algae Apart, Their Causes, and Using Light, Water Changes, Algae Eaters and ToolsAquarium algae control by type: tell brown, green, black beard and blue-green algae apart, fix light and water changes, and choose algae eaters and tools.03
TANK-MATE CHART
Tank-mate chart
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BY SPECIES
Tank mates by species
Tank mates by speciesTM-02Neon Tetra Tank Mates: 22 Species Rated ○△× with Reasons, plus Medaka, Shrimp, CardinalsNeon tetra tank mates for 22 species, rated ○△× with reasons. Bettas, angelfish and goldfish are ×. Medaka, tiger barbs, shrimp and cardinals, with sources.
Tank mates by speciesTM-03Can Bettas Have Tank Mates? Why Males Live Alone, plus Cherry Barbs, Shrimp, SnailsA male betta is best kept alone. Betta tank mates for 22 species rated ○△× with reasons, the cherry barb, shrimp and snail exceptions, and fixes if it fails.
Tank mates by speciesTM-04Guppy Tank Mates: Good and Bad Partners, plus Shrimp, Fry and Keeping Guppies with PlatiesGuppies are ○ with most small, peaceful fish. Guppy tank mates for 22 species rated ○△× with reasons, fin nippers, platies, shrimp, medaka, fry and tank size.
Tank mates by speciesTM-05Corydoras Tank Mates: 22 Species Rated ○△×, Shrimp, Crowded Bottoms and How Many to KeepCorydoras tank mates for 22 species, rated ○△× with reasons. Bettas, medaka and goldfish are ×. Shrimp, sharing the bottom with plecos, and how many to keep.Tank mates by speciesTM-07Medaka Tank Mates: 22 Species Rated ○△× with Reasons, plus Tropical Fish, Shrimp, Nerite Snails, Goldfish and No HeaterMedaka tank mates for 22 species, rated ○△× with reasons. Three shrimp and the nerite snail are ○. Why tropical fish are △ or ×, goldfish, and outdoor ponds.Tank mates by speciesTM-08Goldfish Tank Mates: 22 Species Rated ○△× with Reasons, plus Tropical Fish, Shrimp, Medaka, Cleaners and Goldfish VarietiesGoldfish tank mates for 22 species, rated ○△× with reasons. Why small fish and shrimp are ×, why tropical fish are △, medaka, nerite snails and tank size.
Tank mates by speciesTM-09Angelfish Tank Mates: Good and Bad Partners, Why Grown Angelfish Eat Small Fish and Shrimp, Tank Size and How Many to KeepAngelfish tank mates must be too big to swallow. 22 species rated ○△× with reasons, why small fish get eaten as angels grow, neons, corydoras, shrimp, tank size.
Tank mates by speciesTM-10Platy Tank Mates: Good and Bad Partners, Keeping Platies with Guppies, Shrimp and Neon Tetras, and Protecting FryPlaties are ○ with most small, peaceful fish. Platy tank mates for 22 species rated ○△× with reasons, guppies, neons, shrimp, fry, too many babies and tank size.Tank mates by speciesTM-11Otocinclus Tank Mates: 22 Species Rated ○△× with Reasons, Why They Get Bullied, Medaka, Goldfish, Shrimp, Algae and FoodOtocinclus tank mates for 22 species rated ○△× with reasons. Why otos get bullied, × bettas, angels and goldfish, △ medaka and shrimp, algae, food and numbers.05
SHRIMP & SNAILS
