Hardy fish is a term which refers to any fish which is easy to maintain in home aquaria due to their ability to adapt to a wide range of water parameters. Such fish are good starter fish and ideal for 'cycling' your aquarium (i.e. reducing ammonia and nitrites to effectively zero.)
Examples of hardy freshwater fish include Poecilids such as the guppy, molly and platy, most species of Corydoras and some tetras. Generally, fish are hardy only when they have been tank-bred, since wild-caught fish may take many generations to adapt to life in captivity.
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Aquarium and fishkeeping hobby
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| Types |
- Freshwater aquarium
- Marine aquarium
- Brackish-water aquarium
- Community aquarium
- Biotope
- Reef aquarium
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| Aquarium equipment and furniture |
- Filter
- Algae scrubber
- Berlin Method
- Protein skimmer
- Powerhead
- Deep sand bed
- Heater
- Refugium
- Sump
- Calcium reactor
- Bog-wood and Driftwood
- Airstone
- Live rock and Live sand
- Substrate
- Fishcam
- Aquarium fish feeder
- Aquarium lighting
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| Fish terms |
- Hardy fish
- Dither fish
- Algae eater
- Bottom feeder
- Tropical fish
- Coldwater fish
- Painted fish
- Clean-up crew
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| Fish food |
- Feeder fish
- Brine shrimp
- Tubifex tubifex
- Daphnia
- Infusoria
- Shrimp mix
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| Lists |
- Aquarium diseases
- Aquarium fish by scientific name
- Freshwater aquarium fish
- Freshwater aquarium amphibians
- Freshwater aquarium invertebrates
- Freshwater aquarium plants
- Marine aquarium fish
- Marine aquarium invertebrates
- Marine aquarium plants
- Brackish aquarium fish
- Brackish aquarium invertebrates
- Brackish aquarium plants
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| Other concepts |
- Aquascaping
- Bath treatment
- Disease in ornamental fish
- MacQuarium
- Quarantine tank
- Reef safe
- Spawning triggers
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| Aquarium magazines |
- Practical Fishkeeping
- Tropical Fish Hobbyist
- Koi
- Aquarium Fish International
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| People |
- Takashi Amano
- Herbert R. Axelrod
- Sven O. Kullander
- Julian Sprung
- Anne Thynne
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| Aquarium-related companies |
- Tetra
- Sera
- Eheim
- Hagen
- Drs. Foster & Smith
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