Diamond Goby

Valencienna puellaris

(51 Reviews)

Diamond Goby

Diamond Goby

Valencienna puellaris

(51 Reviews)

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Diamond Goby Care Facts

Care Level: Easy
Temperament: Peaceful
Diet: Carnivore
Reef Safe: Yes
Minimum Tank Size: 30 gallons
Max Size: 6 inches

Diamond Goby

The Diamond Goby, Valenciennea puellaris, small brilliant orange diamond shapes across its pearl-descent white body. They are hardy and very peaceful and can be housed with other peaceful fish in a reef tank setting, but may become territorial towards other blennies, gobies or dartfish in smaller tanks.

Gobies tend to stay mainly towards the bottom of the tank, burrowing and sifting through the sand. However, this goby is also a known jumper, so a tightly fitting lid is suggested. Diet should include a variety of frozen or live mysis shrimp and vitamin enriched brine shrimp 1-2 times daily.


The Diamond Goby is found in the tropical and subtropical waters of the Indo-Pacific region, including the Red Sea and the western Indian Ocean. In the wild, they inhabit sandy substrates and seagrass beds, where they spend their time burrowing and sifting through the sand for food.


The Diamond Goby is entirely reef-safe and poses no threat to corals or other invertebrates. They offer a valuable service to the aquarium by constantly sifting through the sand, helping to prevent detritus buildup and improve water quality.

Size and Lifespan

Diamond Gobies can grow to be about 6 inches in length. With proper care, they can have a lifespan of up to five years in a well-maintained aquarium.


Diamond Gobies are detritivores in their natural habitat, feeding on tiny organisms and particles found in the sand. In a home aquarium, they readily accept a diet of high-quality frozen or live foods like brine shrimp, mysis shrimp, and small pieces of fish or shrimp.


The Diamond Goby is available in the aquarium trade, and captive-bred specimens are slowly becoming available. Captive-bred gobies are more sustainable and help reduce the impact on wild populations.


Diamond Gobies are generally peaceful and can coexist with various tank mates. They are known to be docile and rarely exhibit aggression towards other fish.

Tank Mates

  • Cardinalfish: Peaceful and colorful, cardinalfish make suitable tank mates for the Diamond Goby.
  • Firefish (Nemateleotris magnifica): These small and peaceful fish share a compatible tank environment with the goby.
  • Pseudochromis (e.g., dottybacks): Certain species of pseudochromis can coexist with the goby, adding color and personality to the tank.
  • Blennies: Some species of blennies are suitable tank mates that add character and charm to the aquarium.
  • Jawfish (Opistognathus spp.): Peaceful jawfish species can be compatible tank mates for the Diamond Goby.

Reviewed by: Jason Steele on May 9, 2024

Reviewed by: Alan Amtmann on April 30, 2024

Healthy on arivial

Reviewed by: Bentley Blalock on April 29, 2024

Wonderful. Good color and size. Great buy

Reviewed by: Sandy Brown on April 22, 2024

Very actively siften sand

Reviewed by: Sherry Cash on April 11, 2024

Shy but only for a day. Already digging holes in the sand and cleaning the bottom. Fun to watch.

Reviewed by: Keith Blair on April 10, 2024

Reviewed by: Justin Leeper on April 9, 2024

Reviewed by: Daniel Burke on March 26, 2024

This diamond goby is awesome!!!! The sand in my tank is never cleaner. He’s always working.

Reviewed by: Charles Raven on March 19, 2024

Reviewed by: Debbie Konechney on March 19, 2024

Reviewed by: Bryan Kaufman on March 17, 2024

Reviewed by: Robert Pilny on March 17, 2024

One of the best saying sifters

Reviewed by: Jim Hauck on Feb. 28, 2024


Reviewed by: Missy Vivenzio on Feb. 26, 2024

Reviewed by: Mark Ernstrom on Feb. 25, 2024

This goby is amazingly hardy and easy to keep.

Reviewed by: Sean Boyer on Feb. 25, 2024

Reviewed by: Trevor Cavanaugh on Feb. 15, 2024

Reviewed by: Lynn Adams on Feb. 12, 2024

Perfect size and got right to sifting the sand

Reviewed by: Anthony Little on Feb. 11, 2024

Reviewed by: Debbie Konechney on Feb. 7, 2024

This little guy loves to move sand. It is neat to watch him sift through the sand and need to watch him spit the sand out when he's making his Hills or tunnels underneath the rocks

Reviewed by: Tim Fuest on Feb. 6, 2024

Great size sifting away

Reviewed by: Anthony Little on Feb. 1, 2024

Reviewed by: Daniel Small on Jan. 29, 2024

Great size but doa from shipping delay

Reviewed by: Anthony Little on Jan. 24, 2024

Great size already cleaning sand bed

Reviewed by: Anthony Little on Jan. 17, 2024


Reviewed by: Mike Perdue on Dec. 17, 2023

Reviewed by: Lynn Adams on Dec. 13, 2023

Reviewed by: William Nesselrotte on Dec. 13, 2023

Doing O.K, but is also more reclusive than previous ones.

Reviewed by: Monte Puymon on Dec. 11, 2023

Reviewed by: Debbie Konechney on Dec. 11, 2023

Reviewed by: Bob Lentner on Dec. 10, 2023

Healthy small which is wanted

Reviewed by: Anthony Little on Dec. 7, 2023

Reviewed by: Barbara Macey on Nov. 27, 2023

Reviewed by: Danny Fenton on Nov. 21, 2023

Reviewed by: Greg Woods on Nov. 8, 2023

Reviewed by: Bill Talbot on Nov. 5, 2023

Reviewed by: Robert Pilny on Oct. 31, 2023

Reviewed by: Alvin Barbes on Oct. 29, 2023

Reviewed by: John Keiser on Oct. 10, 2023

Only took about a day before they started sifting the bit of sand I gave them in the qt tank

Reviewed by: Jim Sharpe on Oct. 8, 2023

Reviewed by: Phillip Gross on Aug. 30, 2023

Reviewed by: Brittney Thornton on Aug. 10, 2023

Reviewed by: Debbie Konechney on Aug. 7, 2023

Took it aa day but is now eating and quite active.

Reviewed by: Carl Samuelson on July 24, 2023

Reviewed by: Robert Mathews on July 3, 2023

When my wife and I was at a fish store I was looking at the different kinds of fish for the aquarium and my wife and called me over to look at my diamond gobi who was at the time beating up the one that was in the same tank He beat the other one up until it jumped out of his tank to the next one and that was when I told the lady who was helping us with our purchase that I will most definitely buy him and I have never seen happier He is really amazing and very enjoyable to watch as he does his land scrapping around the tank I can watch him for hours and I think he try’s to mooch some more brine shrimp off me

Reviewed by: David Vogelfanger on Nov. 27, 2019

I was surprised that in the description nothing was mentioned about the goby's penchant for sand sifting. Simply love this about this goby. Understatement about this goby having lots of personality. He came out of the burrow within an hour of being introduced to the his new home. Simply love this new addition to my tank. May get more.

Reviewed by: Esther Murphy on Jan. 6, 2018

Really hardy, very busy fish, this one has done a great job at cleaning up my sand bed and he is a blast to watch. He likes to pick up the small snails and crabs and put them in a pile! Appears very healthy and doesn't fight with other fish.

Reviewed by: Debi Bush on April 6, 2017

Diamond Gobies are my favorite addition to any tank. They are loaded with personality, and once they get comfortable, they will come out at all times of the day. Not only are they beautiful, they do a great job of keeping you sand clean, and it is fun to watch them filter the substrate out of the sand through their mouths/gills.

Reviewed by: Phillip A Thrasher Jr on April 26, 2015

The Diamond Goby is one of the best additions to my 30 gallon reef tank. He sifts the sand, filters out the food on the bottom and generally keeps the tank clean. He will move the sand from under the live rock so it's best to keep the base rock close to the glass bottom so he cannot get under it to much. When I added him to the tank he was initially shy, now he goes for food, burrows, and stares at you.

Reviewed by: Jim Shenfish on Sept. 1, 2013

A well oiled beautiful little machine. He hid about a day after acclimation but after he dug a little burrow he came out one morning and cleaned 90% of the sand, spotless. The 10% he didn't clean is next to the long tentacle anemone, can you blame him? Awesome sand sifter and does not create sand tornado's. Great personality.

Reviewed by: Justin on Aug. 9, 2013

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