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Shoal & Stem

Flora & Fauna

673 entries — care guides, placement tips, and notes from the community

fish

GloFish Shark

Epalzeorhynchos bicolor

fishfreshwater
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GloFish Tetra

Gymnocorymbus ternetzi

fishfreshwater
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Glowlight Danio

Danio choprai

fishfreshwater
fish
easy

Glowlight Tetra

Hemigrammus erythrozonus

fishfreshwater

The glowlight tetra has a warm golden-orange iridescent stripe running the full body length, glowing like an ember in a planted tank. It is a peaceful, attractive schooling fish that pairs beautifully with dark substrates and dense planting.

fish
medium

Gold Angelfish

Pterophyllum scalare

fishfreshwater

A captive-bred variety carrying the gold gene, producing a warm golden-yellow body with reduced or absent black barring. The gold colouration intensifies with good nutrition and water quality. A classic show-tank fish that pairs beautifully with dark substrates.

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Gold Danio

Danio albolineatus

fishfreshwater
fish
easy

Gold Medaka

Oryzias latipes var.

fishfreshwater

Golden selective line of the Japanese ricefish. Suitable for ponds, outdoor tubs, and nano tanks. Extremely tough and easy to breed. Females carry egg clusters before releasing to plants.

fish
hard

Gold Nugget Pleco

Baryancistrus xanthellus

fishfreshwater

Gold nugget plecos are stunning loricariids with a dark body covered in bright yellow spots and yellow-tipped fins. They are territorial and require warm, oxygen-rich, fast-flowing water with driftwood. They are algae scrapers that also need protein in their diet.

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Gold Ring Danio

Danio tinwini

fishfreshwater
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easy

Gold Tetra

Hemigrammus rodwayi

fishfreshwater

The gold tetra has a distinctive golden-yellow sheen to the body caused by a parasitic infection the fish experiences in the wild — this actually produces the attractive gold iridescence that hobbyists prize. Tank-bred specimens often lack the intense gold but retain a pleasant iridescence. A peaceful, undemanding schooling fish.

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easy

Golden Pencilfish

Nannostomus beckfordi

fishfreshwater

Hardy, golden-bodied pencilfish with a bold red-and-black lateral stripe. The most adaptable pencilfish — tolerates a wider pH range than most. Great for beginner planted tanks.

fish
moderate

Gossei Corydoras

Corydoras gossei

fishfreshwater

Gossei corydoras is a medium-sized species with a golden-tan body adorned with irregular dark markings. It is sometimes called the tail spot cory for the dark blotch at the caudal peduncle. A peaceful schooling species that does well in South American biotope setups with dark substrate and tannin-stained water.

fish
easy

Green Chromis

Chromis viridis

fishsaltwater

The quintessential schooling reef fish — shimmering apple-green in open water above Acropora. Incredibly hardy and peaceful. Best kept in groups of 6+ for the most natural look.

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Green Corydoras

Corydoras aeneus

fishfreshwater
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Green Laser Corydoras

Corydoras sp. 'CW009'

fishfreshwater
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moderate

Green Neon Tetra

Paracheirodon simulans

fishfreshwater

The green neon tetra is the smallest of the three Paracheirodon tetras and one of the most underappreciated. It has a longer, more vivid blue-green stripe with a shorter red patch compared to the cardinal tetra. It is a strict blackwater species requiring soft, very acidic water and is best kept in biotope setups with tannin-stained water and low light.

fish
medium

Green Spotted Puffer

Dichotomyctere nigroviridis

fishbrackish

Vivid green-and-black spotted puffer. Requires brackish conditions as an adult. Highly intelligent and inquisitive — needs enrichment and varied diet including snails to wear down its ever-growing beak.

fish
medium

Green Terror Cichlid

Andinoacara rivulatus

fishfreshwater

Green terror cichlids are large, dramatic fish with vivid turquoise-green scaling and orange-edged fins. Males develop a pronounced nuchal hump with age. Despite the name, they are manageable in species or large community cichlid setups.

fish
easy

Guppy

Poecilia reticulata

fishfreshwater

Guppies are hardy, colourful livebearers that reproduce readily in captivity. Males display elaborate tails and body patterns to attract females. They adapt to a wide range of water conditions, though clean, well-filtered water is essential to prevent fin disease.

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Haraldschultzi Corydoras

Corydoras haraldschultzi

fishfreshwater
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easy

Harlequin Rasbora

Trigonostigma heteromorpha

fishfreshwater

The harlequin rasbora is recognised by the distinctive black triangular patch on its rear half set against a copper-orange body. Hardy, peaceful, and active in the midwater, it pairs beautifully with planted tanks.

fish
medium

Harlequin Tusk

Choerodon fasciatus

fishsaltwater

Bold orange-and-white banded wrasse with vivid blue teeth. Impressive predator fish for FOWLR tanks. Australian specimens (red-orange) are more vibrant than Indo-Pacific.

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Hastatus Corydoras

Corydoras hastatus

fishfreshwater
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medium

Hillstream Loach

Sewellia lineolata

fishfreshwater

The Hillstream Loach (Reticulated Hillstream Loach) is a spectacularly patterned torrent fish with a flattened body and enlarged pectoral fins adapted for clinging to rocks in fast-flowing streams. In the aquarium it requires strong water movement, high oxygenation, and cool temperatures mimicking its native Vietnamese mountain streams. It grazes periphyton (algae and biofilm) from hard surfaces and benefits from supplemental feeding with blanched vegetables and spirulina wafers.

fish
medium

Hockey Stick Pencilfish

Nannostomus eques

fishfreshwater

Distinctive pencilfish that swims at a 45° upward angle with its head tilted toward the surface. Copper-red body with a bold black lateral stripe. Fascinating schooling behaviour in planted tanks.

fish
easy

Honey Gourami

Trichogaster chuna

fishfreshwater

The Honey Gourami is one of the most peaceful labyrinth fish in the hobby — males develop a rich golden-honey coloration with an orange-red throat and belly when in breeding condition. At 4–5 cm it fits comfortably in nano and small community tanks. Less prone to disease than the Dwarf Gourami and considerably more tolerant of soft, acidic water, making it an excellent alternative for low-tech planted setups.

fish
medium

Hongsloi Dwarf Cichlid

Apistogramma hongsloi

fishfreshwater

Striking apisto with vivid yellow, red, and blue colouring on males. Highly variable in colour intensity depending on mood and water quality. A showpiece fish for any planted South American biotope.

fish
easy

Horsefaced Loach

Acantopsis dialuzona

fishfreshwater

Elongated loach with a distinctive long snout for sifting sand. Spends much of its time buried with just its eyes visible. Peaceful and an excellent sand-bed cleaner.

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Imitator Corydoras

Corydoras imitator

fishfreshwater
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easy

Jack Dempsey

Rocio octofasciata

fishfreshwater

Bold, iridescent cichlid covered in electric blue-green spots. Named for the aggressive boxer. One of the most popular American cichlids — easier to keep than its aggressive reputation suggests.

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Japan Blue Endler

Poecilia wingei

fishfreshwater
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easy

Japanese Ricefish

Oryzias latipes

fishfreshwater

Tiny, peaceful fish from Japanese rice paddies. Extremely cold-tolerant — one of the few fish that can be kept outdoors year-round in temperate climates. Egg-hanger that's easy to breed.

fish
easy

Julii Cichlid

Julidochromis transcriptus

fishfreshwater

Elegant Tanganyikan cichlid with black-and-white chequered markings. Pairs for life and is a devoted parent. Relatively peaceful and a great entry point into Tanganyikan cichlids.

fish
easy

Julii Corydoras

Corydoras julii

fishfreshwater

The julii corydoras is often confused with the false julii (C. trilineatus) which is more commonly sold. True julii have spots that do not connect into lines. Both are charming, peaceful schooling fish suited to planted community tanks with fine substrate.

fish
easy

Kissing Gourami

Helostoma temminckii

fishfreshwater

Famous for its lip-locking 'kissing' behaviour — actually a dominance display. Pink or green form available. A voracious algae grazer that also strips soft plants. Grows large.

fish
easy

Kitty Tetra

Hyphessobrycon heliacus

fishfreshwater

The kitty tetra is a relatively new species to the aquarium trade with a beautiful rosy-pink body and striking red and black finnage. It is closely related to the rosy tetra and shares its peaceful temperament. A charming choice for soft-water planted community tanks, where its delicate colouration glows under warm lighting.