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Blue Gudgeon Dartfish
Dartfish

Blue Gudgeon Dartfish

Ptereleotris microlepis

The Blue Gudgeon Dartfish is a slender, iridescent blue-green hoverer that lingers over sand and rubble near its burrow, darting for cover the instant it's startled. It's an easy, peaceful reef fish that takes mysis and brine shrimp readily, but it is a committed jumper — any gap in a lid or overflow will be found sooner or later. Best kept in a tightly covered tank with a deep sand bed and loose rubble for cover, as a mated pair or a small loose group.

Temperament
Peaceful
Max size
4.7"
Min tank
30 gal
Reef-safe
Reef safe
Diet
Planktivore
Zone
Mid-water, Open water
Best in a shoal of 2+.
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Tankmates

How Blue Gudgeon Dartfish gets on with the rest of the reef, checked pair by pair by the same engine as the live pre-flight.

Best kept apart

A real clash — aggression, predation or a same-genus fight.

Purple TangPurple Tang (aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Picasso TriggerfishPicasso Triggerfish (aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Dragon WrasseDragon Wrasse has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.Volitans LionfishVolitans Lionfish has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.Snowflake MoraySnowflake Moray has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.Zebra MorayZebra Moray has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.Chainlink MorayChainlink Moray has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.Golden Dwarf MorayGolden Dwarf Moray has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.Rectangle TriggerfishRectangle Triggerfish (aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Clown TriggerfishClown Triggerfish (aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Miniata GrouperMiniata Grouper (aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Panther GrouperPanther Grouper (aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Six-Line SoapfishSix-Line Soapfish has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.Painted FrogfishPainted Frogfish has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.Dogface PufferDogface Puffer has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.Porcupine PufferPorcupine Puffer has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.Lunare WrasseLunare Wrasse (aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Spanish HogfishSpanish Hogfish has a big enough mouth to eat the much smaller Blue Gudgeon Dartfish.

Keep an eye on these

Usually fine, but worth watching in a smaller tank.

Sailfin TangSailfin Tang (semi-aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Red Coris WrasseRed Coris Wrasse (semi-aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Emperor AngelfishEmperor Angelfish (semi-aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Queen AngelfishQueen Angelfish (semi-aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Blueface AngelfishBlueface Angelfish (semi-aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Niger TriggerfishNiger Triggerfish (semi-aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Blonde Naso TangBlonde Naso Tang (semi-aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.Desjardini Sailfin TangDesjardini Sailfin Tang (semi-aggressive) is much larger than the peaceful Blue Gudgeon Dartfish and may harass it.