5.1"min 50 galpeacefulModerate
Set a tank to check fit
Compatibility engine
Add livestock
Every species is checked against your display tank before it goes in the water.
274 of 274 species · no tank set
Puffer
Valentini Puffer
Canthigaster valentini
3.9"min 30 galsemi-aggressiveEasy
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Shrimp
Skunk Cleaner Shrimp
Lysmata amboinensis
2.2"min 20 galpeacefulShrimp · cleans fishBeginner
Cleans other fish.
Controls fish parasites (ich)
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Urchin
Tuxedo Urchin
Mespilia globulus
2"min 30 galpeacefulUrchin · grazes algaeEasy
Controls film & diatoms, hair algae
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Wrasse
Radiant Wrasse
Halichoeres iridis
4.5"min 60 galpeacefulExpert
Controls bristleworms
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Frogfish
Painted Frogfish
Antennarius pictus
11.8"min 40 galsemi-aggressiveModerate
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Butterflyfish
Copperband Butterflyfish
Chelmon rostratus
7.9"min 75 galpeacefulExpert
Controls aiptasia
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Dragonet
Mandarin Dragonet
Synchiropus splendidus
2.8"min 30 galpeacefulExpert
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Filefish
Matted Filefish
Acreichthys tomentosus
4.7"min 30 galpeacefulModerate
Controls aiptasia
Set a tank to check fit
Firefish
Helfrich's Firefish
Nemateleotris helfrichi
2.4"min 20 galpeacefulModerate
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Moorish idol
Moorish Idol
Zanclus cornutus
9.1"min 125 galpeacefulExpert
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Sweetlips
Harlequin Sweetlips
Plectorhinchus chaetodonoides
23.6"min 500 galpeacefulExpert
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How we check: each species' minimum tank size against your display volume, plus quantities and behaviour pairings between tankmates.
Puffer
Blue-Spotted Toby
Canthigaster solandri
The blue-spotted (spotted sharpnose) toby is a small, hardy pufferfish that tops out around 11–12 cm, so it fits in far more modest tanks than its giant Arothron cousins. It's an inquisitive, personable fish but a genuine fin-nipper, and its diet naturally includes molluscs, crustaceans and coral tissue — so ornamental shrimp, snails and even coral polyps are all fair game, making it reef-caution rather than reef-safeWon't harm corals or invertebrates, so it's safe to keep in a reef tank rather than a fish-only setup.. Like all puffers it needs hard-shelled foods (snails, shell-on shrimp) to wear down its ever-growing beak, and its skin carries tetrodotoxin, so it should always be handled with care.
Temperament
Semi-aggressive
Max size
4.7"
Min tank
50 gal
Care
Moderate
Diet
Omnivore
Reef-safe
Reef safe with caution
Zone
Mid-water, Rockwork
Lifespan
3–5 years
Flow
Low flow
Sourcing
Wild-caught only
Keep just one per tank — two will fight.
Care & compatibility guidance only — confirm this fish’s needs and temperament with your supplier before you buy. Disclaimer