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We offer one of the largest selections of freshwater and saltwater fish in Philadelphia. Check out our videos.

Blacktail Lemonpeel Angel Hybrid #blacktaillemonpeel #thehiddenreef ... See MoreSee Less

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22 hours ago

The Hidden Reef, Inc

Bicolor Angel - Centropyge bicolor
Blacktail Lemonpeel: Hyb Super - Centropyge flavissima x v
Imperator Angel: Juv - Pomacanthus imperator
Multicolor Angel; Mar. - Centropyge multicolor
Purple Queen Anthias: Female - Pseudanthias tuka
Square (Yellow) Anthias: Fem. - Pseudanthias pleurotaenia
Square (Pink) Anthias: Male - Pseudanthias pleurotaenia
Tobacco Basslet; Atl. - Serranus tabacarius
Lawnmower Blenny - Salarias fasciatus
Ruby Red Dragonette - Synchiropus stellatus
Long Horned Cowfish - Lactoria cornuta
Scribbled Boxfish: Female - Ostracion solorensis
Black & White Heniochus - Heniochus acuminatus or Henioc
Copperband Butterfly - Chelmon rostratus
Raccoon Butterfly - Chaetodon lunula
Domino Damsel - Dascyllus trimaculatus
Electric Blue Damsel - Pomacentrus coelestis
Fiji Devil Damsel; Fiji - Chrysiptera taupou
Orange Tail Damsel - Chrysiptera cyanea
Yellow Damsel - Pomacentrus moluccensis
Yellowtail Blue Damsel - Chrysiptera sp.
Green Mandarin Goby - Synchiropus splendidus
Randall's Goby - Amblyeleotris randalli
Twinspot (Signal) Goby - Signigobius biocellatus
Watchman Goby (Pink/Blue Spot) - Cryptocentrus leptocepha
Longnose Hawk - Oxycirrhites typus
Red Hawk - Cyprinocirrhites polyactis
Blue Spot Jawfish; Mexico - Opistoganthus sp.
Dragon Pipefish - Corythoichthys intestinalis
Diadema Pseudochromis - Pseudochromis diadema
Rainbow Pseudochromis - Pseudochromis sp.
Strawberry (Purple) Pseudo - Pseudochromis porphyreus
Burr (Spiny Box) Puffer - Chilomycterus sp.
Porcupine Puffer - Diodon holocanthus
Valentini Puffer - Canthigaster valentini
Spotted Sweetlips - Plectorhinchus chaetodonoides
Stripe Sweetlips - Plectorhinchus albovitatus
Blue Eye Tang - Ctenochaetus binotatus
Chocolate (Yel.Mimic) Tang - Acanthurus pyroferus
Convict Tang - Acanthurus triostegus
Mata Tang - Acanthurus mata
Orange Shoulder Tang - Acanthurus olivaceus
Powder Brown Surgeon - Acanthurus japonicus
Sailfin Tang - Zebrasoma veliferum
Scopas Tang - Zebrasoma scopas
Vlamingi Tang - Naso vlamingi
Yellow Eye Tang; Haw. - Ctenochaetus strigosus
Clown Trigger - Balistoides conspicillum
Humu Humu Trigger - Rhinecanthus aculeatus
White Tail Trigger - Sufflamen albicaudatus
Anchor Tusk
Black Leopard Wrasse - Macropharyngodon negrosensi
Christmas Wrasse; Indo Pacific - Halichoeres sp.
Cleaner Wrasse - Labroides dimidiatus
Divided Leopard Wrasse: Female - Macropharyngodon bipar
Dragon Wrasse - Novaculichthys taeniourus
Koi Fairy Wrasse: Male - Cirrhilabrus sp.
Longjaw Wrasse: Red - Cheilinus sp.
Torpedo Wrasse: Female - PSEUDOCORIS YAMASHIROI
Moorish Idol - Zanclus canescens
Bubble Anem: Color - Entacmaea quadricolor
TRACHY EACH LAVENDER
CYNARINA AUSSIE
MUSHROOM RICORDEA ORANGE
BANDIT DOTTYBACK 2.5-3 INCH
LINED CORIS WRS HAW 5.5-6 INCH
ARROWHEAD BASSLET 3-4 INCH
MONTIPORA TONGA GREEN
ACRO EACH ULTRA RAINBOW
ZOA EACH GORILLA NIPPLES
Arrow Crab; Atl. - Stenorhynchus seticornis
Blue Leg Reef Hermit Crab; Atl. Paguristes sp.
Decorator Spider Crab - Camposcia retusa
Sally Lightfoot Crab; Pac. - Percnon sp.
Tiger Tail Cucumber - Stichopus sp.
Sea Hare - Dolabella auricularia
Cleaner Shrimp Lysmata amboinensis
Fire Shrimp - Lysmatta debelius
White Sand Star - Archaster typicus
Long Spine Urchin - Diadema sp.
Royal Urchin: Color - Mespilia globulus
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22 hours ago

The Hidden Reef, Inc

ELECTRIC BLUE DEMPSEY
PIPE FISH
ORANGE PUMPKIN SHRIMP
SILVER SHARK
JELLYBEAN PARROT (MIX)
PLATINUM PARROT CICHLID
MIX PINTO CRYSTAL SHRIMP (RED & BLACK, A-S GRADE)
CLOWN LOACH
REDTAIL SHOVELNOSE CATFISH
RUMMY NOSE TETRA
PLATINUM GREEN TIGER BARB
GOURAMIES - ASSORTED DWARF GRMI MALE
BLACK MOLLY
MOLLIES - GOLDEN SAILFIN PAIRS
MOLLIES - SILVER
PLATIES - RED WAGTAIL
BARB - RED TIGER BARB
MOLLIES - DALMATION
PLATIES - NEON SPOTTED PLATY
ASSORTED MALAYSIAN DISCUS
PEACOCK BASS
SDOT-LINE PEACOCK CICHLID
ORANDA ASSORTED
CHINA FUEL SURCHARGE - FULL BAG
ASSORTED DUMBO EAR MALE GUPPY
GERMAN WHITE PLATINUM MALE
PAINTED GLASS ISH
MIXED FRUIT TETRAS
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RAINBOW MACCULOCHI-M
TETRA AMANDAE-L
BETTA DUMBO MALE-L
BETTA KOI GALAXY MALE
BETTA MALE
BETTA FEMALE-L
CORY ALBINO-M
CATFISH CHANNEL BLUE-2"-3"
CATFISH CHANNEL GOLD-2-3"
CATFISH SUN CAT-M
CATFISH STRIPED RAPHAEL-SM
BARB CHERRY-L
DANIO ZEBRA LONG FIN-L
OSCAR LEMON NEON-2"
OSCAR RED TIGER-2"
MOLLY BLACK/GOLD LYRETAIL-L
PLATY ASST.-L
PLATY PANDA-L
SWORD RED CALICO -M
LOACH KUHLI SINGAPORE-M
LOACH ZEBRA GOLDEN-1.5"
RAINBOW THREADFIN-L
SHARK RAINBOW-2"
PARROT SUPER RED-L
PLECO CLOWN-M
TETRA BLACK PIIANTOM-M
TETRA WHITE CLOUD-L
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Algae Eaters:Gold
Angelfish:Mixed Veil
Barbs:Tinfoil Pearlfoil
Bettas:Male Crowntail
Bichirs:Delhezi
Catfish:Julii
Cichlids:Eartheater Redstriped Surinamensis
Cichlids:Oscar, Lemon
Anthias:Dispar :: Eastern Asia
Butterflies:Blue Spot, Plebeius :: Central Pacific
Damsels:Sergeant Major :: Eastern Asia
Damsels:Sergeant Major :: Eastern Asia
Damsels:Blue Green :: Central Pacific
Gobies:Watchman Yellow :: Eastern Asia
Gobies:Hector's Goby :: Eastern Asia
Gobies:Jawfish Yellowhead :: East Americas
Gobies:Engineer :: Eastern Asia
Puffers:Blue Dot Toby :: Central Pacific
Tangs:Powder Blue :: South Asia
Tangs:Yellow Belly Hippo Juvenile :: Africa / Red Sea
Wrasses:Pinstriped Male Melanurus :: Central Pacific
Wrasses:Six Line :: Eastern Asia
Anemones:Beaded Mat :: Eastern Asia
Corals, SPS:Acropora, Ultra Colored :: Central Pacific
Crabs:Emerald :: East Americas
Crabs:Arrow :: East Americas
Crabs, Hermit:Scarlet :: East Americas
Cucumbers:Pink & Yellow / Green :: Eastern Asia
Cucumbers:Assorted :: East Americas
Shell, Bivalves:Scallop Flame Electric :: Eastern Asia
Shell, Snails:Cerith White Cone Tip :: West Americas
Shell, Snails:Turbo :: West Americas
Shell, Snails:Turbo, Cat's Eye :: Eastern Asia
Shrimps:Tiger Pistol :: South Asia
Stars:Marble Reef :: Central Pacific
Stars:Blue Linckia :: Central Pacific
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Red Sea Salts | Which is best for your tank? ... See MoreSee Less

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Tetra Copeland Candy Cane #tetracopelandi #thehiddenreef ... See MoreSee Less

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Happy Jul 4th! Be safe and remember those serving at home and abroad that are defending our freedom.

Freedom is not free.
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Happy 4th of July to all our Customers & Friends ... See MoreSee Less

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Caulastrea Coral #caulastrea #thehiddenreef ... See MoreSee Less

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Glo Baby Glo

The front of the store has an array of aquariums, supplies, frozen foods, and all the essential plumbing supplies needed to set up and maintain an aquarium or pond.