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Know your inhabitants. Start with their needs.

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Living coral: Sarcophyton glaucum
Sarcophyton glaucum — an example within this genus guide; traded forms may differ. Photo: Diego Delso · Source · CC BY-SA 4.0Resized and compressed; no cropping or colour changes.

Marine · corals

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Living coral: Sarcophyton glaucum
Sarcophyton glaucum — an example within this genus guide; traded forms may differ. Photo: Diego Delso · Source · CC BY-SA 4.0Resized and compressed; no cropping or colour changes.
Marine · corals

Toadstool leather coral

Sarcophyton

Sarcophyton is a genus of leather corals with a substantial stalk and often broadly expanding cap.

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Living coral: Euphyllia glabrescens
Photo: Josuevg · Source · CC BY-SA 3.0Resized and compressed; no cropping or colour changes.
Marine · corals

Torch coral

Euphyllia glabrescens

Euphyllia glabrescens is a stony coral whose long tentacles move conspicuously with the water.

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Water sprite — Ceratopteris thalictroides
Photo: Show_ryu · Source · CC BY-SA 3.0Resized and compressed; no cropping or colour changes.
Freshwater · plants

Water sprite

Ceratopteris thalictroides

Ceratopteris thalictroides is an aquatic fern grown rooted or floating.

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Yellow clown goby — Gobiodon okinawae
Photo: Marie Moyer · Source · CC BY 2.5Resized and compressed; no cropping or colour changes.
Marine fish

Yellow clown goby

Gobiodon okinawae

The yellow clown goby is small, bright yellow and often seen perched at a favourite lookout.

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Yellow tang — Zebrasoma flavescens
Photo: Luc Viatour · Source · CC BY-SA 3.0Resized and compressed; no cropping or colour changes.
Marine fish

Yellow tang

Zebrasoma flavescens

The yellow tang is an active grazer, not a small yellow addition to fill a reef aquarium.

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Yellow watchman goby — Cryptocentrus cinctus
Photo: User:Haplochromis · Source · CC BY-SA 3.0Resized and compressed; no cropping or colour changes.
Marine fish

Yellow watchman goby

Cryptocentrus cinctus

The yellow watchman goby lives close to the bottom and watches its surroundings from a secure opening.

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Zebra danio — Danio rerio
Photo: Pogrebnoj-Alexandroff · Source · CC BY-SA 3.0Resized and compressed; no cropping or colour changes.
Freshwater · fish

Zebra danio

Danio rerio

The zebra danio, Danio rerio, is a small fish with a surprisingly large appetite for movement.

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Zebra nerite — Vittina natalensis — Shell specimen from Naturalis (RMNH.MOL.151741); not a photograph of a living animal.
Shell specimen from Naturalis (RMNH.MOL.151741); not a photograph of a living animal. Photo: Naturalis Biodiversity Center · Source · CC0Resized and compressed; no cropping or colour changes.
Freshwater snails

Zebra nerite

Vittina natalensis

Vittina natalensis is a nerite sold under names including neritina and zebra snail.

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Living coral: Zoanthus
Zoanthus — an example within this genus guide; traded forms may differ. Photo: Kazvorpal · Source · CC BY-SA 3.0Resized and compressed; no cropping or colour changes.
Marine · corals

Zoanthus colonies

Zoanthus

Zoanthus forms colonies of button-like polyps that can spread across a surface as colourful mats.

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