Half-Moon Lagoon

This aquarium simulates, in part, the conditions found in a shallow Indo-Pacific lagoon with leathery soft corals & fleshy stinging euphyllids. Here, we also house a group of colorful bubble tip anemones, the only true anemones we keep.



Yellow Tang (Zebrasoma flavescens) - The Yellow Tang is a ubiquitous saltwater aquarium fish, & for good reason. Gorgeous, hardy, & fairly well-behaved, they are gregarious omnivores. The white spine at the base of its tail is its weapon, & is as dangerous as it looks. This fish has a big personality & lets all newcomers know it is the one who runs the show inside this little lagoon. After a brief hazing, though, it's usually all good.


Scribbled Rabbitfish (Siganus doliatus) - This fish has no idea how beautiful & powerful it is, which we find charming. Like other Rabbitfish, it is blessed with venomous spines, all the protection it needs to go on about its business eating the vegetable matter that grows on the rock & substrate without fear of bullying by any potential aggressors.

Radiant Wrasse (Halichoeres iridis) x2 - These fish are a great little team of hunters. They eat all the little crustaceans, slugs, & bugs that are almost too tiny for you to sea. When the sun goes down, they do a graceful dive into a pile of sand & sleep until morning.

Potter's Angelfish (Centropyge Potteri) - This lovely Hawaiian angelfish spends most of its time lurking in the rock pile doing a little cruise about the tank occasionally to check things over. It would appreciate a little zooplankton to chow on, with an occasional meal of algae or small anemones.


Longnose Hawkfish (Oxycirrhites typus) x2 - Lots of personality here. These fish mostly hang out perched on a Gorgonia or rock waiting for something interesting to happen. This fish is a proper predator & would be quick to swoop should it see a tasty little crustacean or a super tiny fish come cruising by.

Valentin's Sharpnose Puffer (Canthigaster valentini) - 

Harlequin Filefish (Oxymonacanthus longirostris) - This fish is very special. Once thought to be nearly impossible to keep in captivity, this fish has been thriving in the Moloko reef for over 2 years. Harlequin Filefish are like hummingbirds of the reef, as they hover over Acropora colonies eating polyps, small crustaceans, & tiny anemones. Their wild coloration helps them blend in with the crazy covers of the corals on which they live. This particular fish buzzes about, pretty indifferent to its tankmates. Usually sleeps hovering with it's nose facing straight down at night.


Spiny Urchin (Diadema setosum)


Micro Brittle Stars (Ophiuridea sp.)


Bubbletip Anemone (Entacmaea quadricolor)


 Emerald Crabs (Mithraculus sculptus)

Electric Blue Hermit Crabs (Calcinus elegans)

Micro Blue Leg Hermit Crabs (Clibanarius tricolor)

Polychaete Worms (Polychaeta sp.)

Mexican Turbo Snail (Turbo fluctuosus)

Astraea Snails (Astraea tecta)

Tiger Conch (Strombus sp.)

Nassarius Snails (Nassarius vibex)

Cerith Snail (Cerithiidae sp.)

Blue Tuxedo Pincushion Urchin (Mespilia globulus)

Asterina Stars (Asterina sp.)

Aiptasia Anemones (Aiptasia sp.)

Majano anemone (Anemonia majano)



Sarcophyton glaucum 


Lobophytum sp.


Rhodactis inchoata


Plerogyra flexuosa


 Zoanthus sp.

Palythoa sp. 

Protopalythoa mutuki

Actinodiscus cardinalis

Ricordea yuma

Psammacora sp.

Leptoseris sp.

Pavona sp.

Hydnophora rigida

Favites pentagona

Caulastrea curvata 

Euphyllia cristata 

Euphyllia glabrescens  

Sinularia notanda

Gorgonia sp.