Photo credits

Some of the photos on this website were taken by others and are used under a free licence. Their authors and sources are listed below.

• 
  A colourful mix of Malawi cichlids between rocks and driftwood

  Photo: Julia Butler, CC BY 3.0, via Wikimedia Commons
• 
  A group of orange and white discus in a large planted display aquarium

  Photo: Хомелка, CC BY-SA 3.0, via Wikimedia Commons
• 
  A large school of Malawi cichlids in a public aquarium

  Photo: Fredlyfish4, CC BY-SA 3.0, via Wikimedia Commons
• 
  Acropora tenuis coral colony

  Photo: MolaAcropora, CC BY 4.0, via Wikimedia Commons
• 
  Aiptasia sea anemone with long, pale tentacles

  Photo: Holger Krisp, CC BY 3.0, via Wikimedia Commons
• 
  Albino discus

  Photo: Biotópica, CC BY-SA 4.0, via Wikimedia Commons
• 
  Amano shrimp (Caridina multidentata)

  Photo: Atulbhats, CC BY-SA 4.0, via Wikimedia Commons
• 
  Aulonocara stuartgranti

  Photo: Mike Peel, CC BY-SA 4.0, via Wikimedia Commons
• 
  Banggai cardinalfish in a reef aquarium

  Photo: Robert Linsdell from St. Andrews, Canada, CC BY 2.0, via Wikimedia Commons
• 
  Barred Malawi cichlid in an aquarium with wood and plants

  Photo: Jan Rehschuh, CC BY-SA 3.0, via Wikimedia Commons
• 
  Blastomussa wellsi

  Photo: Bondolo, CC BY-SA 3.0, via Wikimedia Commons
• 
  Blue Diamond discus

  Photo: Rego Korosi, CC BY-SA 2.0, via Wikimedia Commons
• 
  Blue discus against a dark background

  Photo: Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
• 
  Blue discus in an aquascaped aquarium with driftwood

  Photo: Rjcastillo, CC BY-SA 4.0, via Wikimedia Commons
• 
  Boeseman’s rainbowfish (Melanotaenia boesemani)

  Photo: H. Zell, CC BY-SA 3.0, via Wikimedia Commons
• 
  Boeseman’s rainbowfish, blue and orange, in a planted aquarium

  Photo: FakirNL, CC BY-SA 4.0, via Wikimedia Commons
• 
  Branching Acropora corals in a reef aquarium

  Photo: Dieter Karner, CC BY 2.0, via Wikimedia Commons
• 
  Bristlenose pleco (Ancistrus)

  Photo: Júlio Reis, CC BY-SA 4.0, via Wikimedia Commons
• 
  Brown discus with blue lines

  Photo: David J. Stang, CC BY-SA 4.0, via Wikimedia Commons
• 
  Cardinal tetras

  Photo: Paolo Neo, Public domain, via Wikimedia Commons
• 
  Celestial pearl danio (Danio margaritatus)

  Photo: Cisamarc, CC BY-SA 3.0, via Wikimedia Commons
• 
  Chili rasbora (Boraras brigittae)

  Photo: Atulbhats, CC BY-SA 4.0, via Wikimedia Commons
• 
  Cichlids in the clear water of Lake Malawi above a sandy bottom

  Photo: Lars Plougmann, CC BY 2.0, via Wikimedia Commons
• 
  Clown loaches with white spot in a hiding place

  Photo: ML5 at English Wikipedia, Public domain, via Wikimedia Commons
• 
  Clownfish (Amphiprion ocellaris) in an anemone

  Photo: Josuevg, CC BY-SA 3.0, via Wikimedia Commons
• 
  Clownfish in a sea anemone in a public aquarium

  Photo: Krinkle, CC BY-SA 4.0, via Wikimedia Commons
• 
  Cobra guppy (Poecilia reticulata)

  Photo: Andrew Sheedy, CC BY-SA 4.0, via Wikimedia Commons
• 
  Colourful Aulonocara males above a bottom of round stones

  Photo: Rjcastillo, CC BY-SA 4.0, via Wikimedia Commons
• 
  Colourful Zoanthus polyps under blue light

  Photo: Inktomi, CC BY-SA 4.0, via Wikimedia Commons
• 
  Copadichromis borleyi

  Photo: MidgleyDJ at English Wikipedia, CC BY-SA 2.5, via Wikimedia Commons
• 
  Copadichromis borleyi male with a blue head and red flanks

  Photo: Ed Schipul, CC BY-SA 2.0, via Wikimedia Commons
• 
  Corydoras sterbai on a dark sandy bottom

  Photo: Matthew Mannell, Public domain, via Wikimedia Commons
• 
  Cynotilapia afra

  Photo: Alexandra Tyers, CC BY-SA 2.0, via Wikimedia Commons
• 
  Discus with a red and white maze pattern

  Photo: Bernard DUPONT from FRANCE, CC BY-SA 2.0, via Wikimedia Commons
• 
  Discus with natural brown and turquoise striping among plants

  Photo: H. Zell, CC BY-SA 3.0, via Wikimedia Commons
• 
  Duncanopsammia axifuga (whisker coral)

  Photo: Coro, CC BY-SA 3.0, via Wikimedia Commons
• 
  Female Melanochromis auratus

  Photo: 5snake5, CC0, via Wikimedia Commons
• 
  Firefish (Nemateleotris magnifica)

  Photo: Rickard Zerpe, CC BY 2.0, via Wikimedia Commons
• 
  Flame angelfish (Centropyge loricula)

  Photo: lwolfartist, CC BY 2.0, via Wikimedia Commons
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  Flame angelfish between corals in an aquarium

  Photo: KoS, CC BY-SA 3.0, via Wikimedia Commons
• 
  Gouramis between aquatic plants

  Photo: Chmee2, CC BY 3.0, via Wikimedia Commons
• 
  Green discus (Symphysodon tarzoo)

  Photo: Pierdzig, CC BY-SA 4.0, via Wikimedia Commons
• 
  Harlequin rasboras (Trigonostigma heteromorpha)

  Photo: Juan R. Lascorz, CC BY-SA 3.0, via Wikimedia Commons
• 
  Harlequin rasboras spawning under a plant leaf

  Photo: Stefan Maurer, CC BY-SA 2.0, via Wikimedia Commons
• 
  Labeotropheus trewavasae

  Photo: Klaus Rudloff, CC BY-SA 4.0, via Wikimedia Commons
• 
  Labidochromis caeruleus ‘Yellow’

  Photo: Mike Peel, CC BY-SA 4.0, via Wikimedia Commons
• 
  Leather coral (Sarcophyton glaucum)

  Photo: Diego Delso, CC BY-SA 4.0, via Wikimedia Commons
• 
  Leopard discus

  Photo: cuatrok77, CC BY 2.0, via Wikimedia Commons
• 
  Male Endler’s livebearer (Poecilia wingei)

  Photo: Dgrummon, CC BY-SA 4.0, via Wikimedia Commons
• 
  Male Maylandia estherae (Red Zebra)

  Photo: Maha Dinesh, CC BY-SA 3.0, via Wikimedia Commons
• 
  Male Melanochromis auratus with dark and light blue stripes

  Photo: Vlad Butsky from San Jose, CA, USA, CC BY 2.0, via Wikimedia Commons
• 
  Male Siamese fighting fish with red and blue fins

  Photo: Henryk Niestrój, CC BY 4.0, via Wikimedia Commons
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  Male and female swordtail in a planted aquarium

  Photo: Bartosz Kowalewicz, CC BY-SA 3.0, via Wikimedia Commons
• 
  Male honey gourami (Trichogaster chuna)

  Photo: Marcus Cyron, CC BY-SA 3.0, via Wikimedia Commons
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  Male ram cichlid (Mikrogeophagus ramirezi)

  Photo: Aquakeeper14, CC BY-SA 3.0, via Wikimedia Commons
• 
  Mandarinfish (Synchiropus splendidus)

  Photo: Thesupermat, CC BY-SA 4.0, via Wikimedia Commons
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  Mandarinfish with blue and orange patterns

  Photo: Luc Viatour, CC BY-SA 3.0, via Wikimedia Commons
• 
  Marlboro Red discus

  Photo: Ubforty, CC BY-SA 3.0, via Wikimedia Commons
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  Mouthbrooding Tropheops female between the rocks

  Photo: Alexandra Tyers, CC BY-SA 2.0, via Wikimedia Commons
• 
  Mushroom coral (Discosoma) in an aquarium

  Photo: Josuevg, CC BY-SA 3.0, via Wikimedia Commons
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  Neon tetra (Paracheirodon innesi)

  Photo: Горбунова М.С., CC BY-SA 4.0, via Wikimedia Commons
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  Neon tetra (Paracheirodon innesi) above the aquarium floor

  Photo: Warrieboy, CC BY-SA 4.0, via Wikimedia Commons
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  Nimbochromis venustus

  Photo: Mike Peel, CC BY-SA 4.0, via Wikimedia Commons
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  Nimbochromis venustus next to aquarium plants

  Photo: Jutta234, CC BY-SA 3.0, via Wikimedia Commons
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  Orange discus in a planted aquarium

  Photo: H. Zell, CC BY-SA 3.0, via Wikimedia Commons
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  Orange discus in a planted aquarium

  Photo: Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
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  Orange-red discus in a planted aquarium

  Photo: H. Zell, CC BY-SA 3.0, via Wikimedia Commons
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  Otocinclus on driftwood

  Photo: Evan Baldonado, CC BY 4.0, via Wikimedia Commons
• 
  Palette surgeonfish (Paracanthurus hepatus) in front of a rock wall

  Photo: Holger Krisp, CC BY 3.0, via Wikimedia Commons
• 
  Pearl gourami (Trichopodus leerii)

  Photo: פעיל למען זכויות אדם, CC BY-SA 4.0, via Wikimedia Commons
• 
  Pencilfish (Nannostomus nigrotaeniatus)

  Photo: Cedricguppy - Loury Cédric, CC BY-SA 4.0, via Wikimedia Commons
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  Peppered corydoras (Corydoras paleatus)

  Photo: Ude, CC BY-SA 3.0, via Wikimedia Commons
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  Pigeon Blood discus

  Photo: David J, CC BY 2.0, via Wikimedia Commons
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  Placidochromis electra

  Photo: Paolo Neo, Public domain, via Wikimedia Commons
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  Planted aquarium with driftwood and small shrimp

  Photo: Snehayan, CC BY 4.0, via Wikimedia Commons
• 
  Planted nature aquarium with driftwood and stones

  Photo: Dileepkumardr, CC0, via Wikimedia Commons
• 
  Protomelas male with a blue head and red flanks above gravel

  Photo: Michael Gil from Toronto, ON, Canada, CC BY 2.0, via Wikimedia Commons
• 
  Protomelas taeniolatus ‘Red Empress’

  Photo: Derek Ramsey (Ram-Man), CC BY-SA 2.5, via Wikimedia Commons
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  Pseudotropheus demasoni with blue and black stripes

  Photo: Emőke Dénes, CC BY-SA 4.0, via Wikimedia Commons
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  Pulsing Xenia coral (Xenia umbellata)

  Photo: Diego Delso, CC BY-SA 4.0, via Wikimedia Commons
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  Ram cichlid with yellow, blue and red colours

  Photo: Anton Kuz', CC BY-SA 3.0, via Wikimedia Commons
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  Red Turquoise and Blue Diamond discus between aquarium plants

  Photo: Djlayton4, Daniel J. Layton, CC BY-SA 3.0, via Wikimedia Commons
• 
  Red Turquoise discus

  Photo: Blair McBride, CC BY-SA 2.0, via Wikimedia Commons
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  Red swordtails (Xiphophorus hellerii)

  Photo: Ranjithsiji, CC BY-SA 3.0, via Wikimedia Commons
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  Red-patterned discus in front of driftwood

  Photo: Cangadoba, CC BY-SA 4.0, via Wikimedia Commons
• 
  Reef aquarium with corals and a butterflyfish

  Photo: WolfmanSF, CC BY-SA 4.0, via Wikimedia Commons
• 
  Royal gramma (Gramma loreto)

  Photo: Diego Delso, CC BY-SA 4.0, via Wikimedia Commons
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  Royal gramma, purple and yellow, between corals

  Photo: H. Zell, CC BY-SA 3.0, via Wikimedia Commons
• 
  Sciaenochromis fryeri (Electric Blue Hap)

  Photo: NasserHalaweh, CC BY-SA 4.0, via Wikimedia Commons
• 
  Several types of Caulerpa macroalgae

  Photo: Coughdrop12, CC BY-SA 4.0, via Wikimedia Commons
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  Torch coral (Euphyllia glabrescens)

  Photo: Diego Delso, CC BY-SA 4.0, via Wikimedia Commons
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  Turquoise-striped discus in front of tall aquarium plants

  Photo: Thesupermat, CC BY-SA 3.0, via Wikimedia Commons
• 
  Two cardinal tetras above gravel

  Photo: CHUCAO, CC BY-SA 3.0, via Wikimedia Commons
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  Two clownfish among the tentacles of an anemone

  Photo: Nick Hobgood, CC BY-SA 3.0, via Wikimedia Commons
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  Two platies (Xiphophorus maculatus)

  Photo: Carlosar, CC BY-SA 3.0, via Wikimedia Commons
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  Two red-patterned discus swimming side by side

  Photo: Sarbast.T.Hameed, CC BY-SA 4.0, via Wikimedia Commons
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  White sailfin mollies (Poecilia latipinna)

  Photo: Bjoertvedt, CC BY-SA 3.0, via Wikimedia Commons
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  Yellow female Pseudotropheus saulosi

  Photo: Trigger at Dutch Wikipedia, CC BY 1.0, via Wikimedia Commons
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  Yellow labidochromis (Labidochromis caeruleus) in an aquarium

  Photo: Chmee2, CC BY 3.0, via Wikimedia Commons
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  Yellow tang (Zebrasoma flavescens)

  Photo: harum.koh from Kobe city, Japan, CC BY-SA 2.0, via Wikimedia Commons
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  Yellow tang with white spots of marine ich

  Photo: Jbinfla1963, CC BY-SA 3.0, via Wikimedia Commons
• 
  Zebra danios (Danio rerio)

  Photo: Pleple2000, CC BY-SA 4.0, via Wikimedia Commons
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  Zoanthus polyps under actinic light

  Photo: Robert Howie, CC BY-SA 2.0, via Wikimedia Commons