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Demo Reef Library

AllFishCoralInvertsPests
Acan Lord ⚠
Acropora Flatworms (AEFW)
Acropora SPS
✓
Aiptasia Anemone
✓
Alveopora
Anthelia (Waving Hand) ⚠
Banggai Cardinalfish
Birdsnest Coral
Blastomussa
Blood Red Fire Shrimp
Blue Leg Hermit Crab
✓
Bristle Worms (Nuisance)
Bubble Algae
Bubble Coral
Bubble Tip Anemone
Candy Cane Coral
Chalice Coral
Chalk Bass
Clove Polyps ⚠
Colt Coral ⚠
Copperband Butterflyfish
Coral Beauty Angelfish
Cyanobacteria
Devil's Hand Leather ⚠
Dinoflagellates
Dragonface Pipefish
Duncan Coral
✓
Elegance Coral
Emerald Crab
Emperor Angelfish
Favia Brain Coral
Feather Duster Worm
✓
Finger Leather ⚠
Firefish Goby
✓
Flameback Angelfish
★
Flasher Wrasse
★
Four Stripe Damselfish
Frogspawn Coral
Galaxea (Galaxy Coral)
Gigantea Carpet Anemone
Goniopora (Flowerpot)
Gorgonian (Sea Fan)
Green Star Polyps ⚠
Haddoni Carpet Anemone
Hair Algae
Hammer Coral
✓
Harlequin Shrimp
Helfrich's Firefish
Kenya Tree Coral ⚠
Kole Tang
Lawnmower Blenny
★
Leopard Wrasse
★
Lettuce Sea Slug
Lobophyllia (Lobo Brain)
Long Tentacle Anemone
★
Majano Anemone
Malu Anemone
★
Mandarin Dragonet
Mantis Shrimp
Marine Ich
Maroon Clownfish
Meat Coral
Melanurus Wrasse
Micromussa
Midas Blenny
Montipora
Montipora Nudibranch
Moorish Idol
Mushroom Coral ⚠
Nassarius Snail
★
Neon Goby
Ocellaris Clownfish
✓
Open Brain Coral
Orchid Dottyback
✓
Pajama Cardinalfish
Pavona (Cactus Coral)
Pectinia
Peppermint Shrimp
Percula Clownfish
Phantom Blenny
Pistol Shrimp
★
Plate Coral (Fungia)
Pocillopora
Porcelain Anemone Crab
Porcupine Pufferfish
Pulsing Xenia ⚠
Regal Blue Tang
Rhodactus Mushroom ⚠
Ricordea Mushroom
Ritteri Anemone
Royal Dottyback
★
Royal Gramma
✓
Scolymia (Scoly)
Scooter Blenny
Seahorse
Sebae Anemone
Six Line Wrasse
✓
Skunk Cleaner Shrimp
✓
Springeri Damsel
★
Starry Blenny
Stylophora
Sun Coral
Tailspot Blenny
✓
Tiger Pistol Shrimp
Toadstool Leather ⚠
Tomini Bristletooth Tang
Torch Coral
✓
Tridacna Clam
Trochus Snail
★
Turbo Snail
✓
Tuxedo Urchin
Vermetid Snails
Yellow Tang
✓
Yellow Watchman Goby
Zoanthids ⚠
OK Caution Issue ↑↓ navigate   Enter select
Galaxea (Galaxy Coral)
Galaxea fascicularis
Also known as: galaxea fascicularis, galaxy coral, star coral, tooth coral, LPS
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📖 Wikipedia / Wikimedia Commons
Beautiful field of star-like polyps — but armed with some of the longest, most aggressive sweeper tentacles in the hobby (6+ inches at night). Hardy and easy to grow, yet it will chemically and physically attack anything nearby. Isolate it with a wide buffer of bare rock.
CARE
Intermediate
AGGRESSION
High
MAX SIZE
6-12"
FLOW
Medium
LIGHTING
Medium
PAR RANGE
75–150 µmol
✓ READY TO ADD
💰 BUDGET PICK
VALUE
★★★★★
WOW FACTOR
★★★★★
TYPICAL PRICE
~$30–70
Cheap, hardy, and gorgeous — just respect the sweepers and give it a corner of its own.
⚠️
SWEEPER TENTACLES
Extends long sweeper tentacles, especially at night, that will sting and damage neighboring corals. Maintain at least 6 inches of clearance from all other corals.
🌙
EXTENDED NIGHT REACH
Sweeper tentacles can extend 6+ inches after lights out. What looks like safe spacing during the day may not be at night.
🌊 WATER PARAMS
ParamStatusIdeal
TemperatureOK (78.4)76–82 °F
SalinityOK (1.025)1.024–1.026 sg
pHOK (8.22)8.1–8.4
Nitrate NO₃⁻OK (8.0)0–10 ppm
Tank Compatibility
Skunk Cleaner ShrimpCompatible
Duncan CoralCaution
Feather Duster WormCompatible
Firefish GobyCompatible
Hammer CoralIncompatible
Blue Leg Hermit CrabCompatible
Ocellaris ClownfishCompatible
Orchid DottybackCompatible
Royal GrammaCompatible
Six Line WrasseCompatible
Acropora SPSIncompatible
Tailspot BlennyCompatible
Torch CoralIncompatible
Turbo SnailCompatible
Yellow TangCompatible