Search ReefScales
Results for "led"
51 launch-approved results
Search results for "led"
ARTICLE
Cycled Yet?
How long does it actually take and what that really even mean?
ARTICLE
Ocellaris Clownfish
A hardy, reef-safe clownfish that adapts well to home aquariums, the Ocellaris Clownfish is an excellent choice for beginners and experienced reef keepers alike....
ARTICLE
Derasa Clam
Derasa clams are one of the more forgiving giant clams, but they still require a stable, mature reef with consistent lighting and chemistry. They...
ARTICLE
Maxima Clam
Maxima clams are high-light, light-driven clams that do best in mature, stable reef systems. They need strong, consistent lighting, steady alkalinity and calcium, and...
ARTICLE
Crocea Clam
Crocea clams are high-light, rock-dwelling giant clams that demand stable chemistry and strong, consistent lighting. They’re sensitive to alkalinity swings, poor placement, and system...
ARTICLE
Tridacna Clam
Tridacna clams are light-driven reef animals that thrive only in stable, mature systems. Strong, consistent lighting and steady alkalinity and calcium matter far more...
ARTICLE
Ulva (Sea Lettuce)
Ulva (Sea Lettuce) is a fast-growing macroalgae used primarily for nutrient export and food web support. It thrives with moderate–high light, moderate flow, and...
ARTICLE
Montipora-Eating Nudibranch (Phestilla subodiosus)
Montipora-eating nudibranchs are tiny coral predators that chew Montipora tissue, causing “nibbled” edges and scraped white bite patches. They hide on undersides and lay...
ARTICLE
Brooklynellosis (Brooklynella hostilis)
Brooklynella, often called brook, is a fast-moving external parasite best known for hitting clownfish hard with heavy mucus, breathing stress, and rapid decline. It...
ARTICLE
Percula Clownfish (Amphiprion percula)
A reef-safe clownfish with bold coloration and strong personality, the Percula Clownfish is hardy, adaptable, and well suited for both new and experienced reef...
ARTICLE
Royal Gramma Basslet (Gramma loreto)
The Royal Gramma is a classic reef fish: small, colorful, hardy, and full of personality. It’s best known for its stunning purple-to-yellow gradient and...
ARTICLE
Firefish Goby
A reef-safe, peaceful fish that’s easy to keep and fun to watch—as long as your tank is covered. Provide rockwork with a bolt hole,...
ARTICLE
Foxface Rabbitfish
A larger, reef-compatible herbivore known for algae grazing and calm cruising behavior. Best in 125+ gallons with strong filtration and daily algae-based feeding. Usually...
ARTICLE
Neon Goby
A small, peaceful, reef-safe goby known for occasional cleaner behavior. Great for beginners and community tanks, as long as it isn’t housed with fish...
ARTICLE
Diamond Watchman Goby
A reef-safe sand-sifting goby that turns over the sand bed and adds constant bottom activity. Best in 40+ gallons with a mature sand bed,...
ARTICLE
Midas Blenny
A reef-safe blenny with big personality that often swims in the open like a small schooling fish. Easy to feed and generally community-friendly, but...
ARTICLE
Blue-Green Chromis
A reef-safe, active schooling fish that adds constant motion to the upper water column. Easy to feed and generally peaceful with other species, but...
ARTICLE
Coral Beauty Angelfish
A colorful, active dwarf angelfish that can be a reef tank centerpiece. Best kept in 55+ gallons with mature rockwork and a varied omnivore...
ARTICLE
Kole Tang
A reef-safe bristletooth tang known for excellent film algae and biofilm grazing. Best kept in 70–75+ gallons with strong filtration, stable conditions, and daily...
ARTICLE
Yellow Tang
An iconic reef-safe grazer that adds constant movement and bright color. Best kept in 75+ gallons with plenty of swimming space and daily algae-based...
ARTICLE
Six-Line Wrasse
A colorful, energetic wrasse that patrols rockwork all day and is usually easy to feed. Reef safe, but temperament can become aggressive over time—especially...
ARTICLE
Lawnmower Blenny
A classic algae-grazing blenny with big personality. Best in 40+ gallon tanks with mature rockwork and steady grazing opportunities. Supplement with algae-based foods so...
ARTICLE
Tailspot Blenny
A tiny, reef-safe fish packed with personality. Best kept singly with plenty of rockwork and perches. Easy to feed and may graze lightly, but...
ARTICLE
Pajama Cardinalfish
A peaceful, reef-safe cardinalfish with a quirky spotted pattern and calm hovering behavior. Easy to feed, beginner-friendly, and often suitable for pairs or small...
ARTICLE
Banggai Cardinalfish
A peaceful, reef-safe cardinalfish with bold striping and a calm hovering behavior. Great for community reefs, especially smaller tanks, as long as it isn’t...
ARTICLE
Peppermint Shrimp
Peppermint shrimp are hardy, opportunistic scavengers that fit well into many reef tanks when expectations are set correctly. They’re mostly nocturnal, tend to stay...
ARTICLE
Skunk Cleaner Shrimp
Skunk cleaner shrimp are hardy, reef-safe scavengers that also happen to clean fish when given the chance. They’re active, visible, and beginner-friendly in stable...
ARTICLE
Fire Shrimp
Fire (Blood) shrimp are peaceful, reef-safe cleaner shrimp with a more reserved personality than skunk cleaners. They’re naturally shy, often more active in the...
ARTICLE
Turbo Snail
Turbo snails are powerful algae grazers best used as a targeted response when algae needs to be knocked back quickly. They’re reef safe biologically,...
ARTICLE
Porcelain Crab
Porcelain crabs are peaceful filter feeders that rely on moderate flow and suspended food rather than scavenging. They do best in established reefs with...
ARTICLE
Squamosa Clam
Squamosa clams are one of the more forgiving giant clams, but they still require a stable, mature reef with consistent lighting and chemistry. They...
ARTICLE
Brittle Star
Brittle stars are reef-safe scavengers that live in rockwork and help clean up leftover food before it becomes a nutrient problem. They’re mostly hidden...
ARTICLE
Sand-Sifting Starfish
Sand-sifting starfish clean sand by consuming the life within it, which makes them one of the most common slow-failure inverts in reef tanks. While...
ARTICLE
Fromia Starfish
Fromia starfish are beautiful but demanding invertebrates that rely on mature reef surfaces for food. They require large, well-established tanks with abundant biofilm and...
ARTICLE
Asterina Starfish
Asterina starfish are common hitchhikers that usually act as harmless algae and biofilm grazers. In balanced tanks they stay in low numbers and do...
ARTICLE
Gracilaria
Gracilaria is a reef-friendly macroalgae that provides steady nutrient export, pod habitat, and natural food for herbivores without becoming invasive. It grows best with...
ARTICLE
Dragon’s Tongue (Halymenia)
Dragon’s Tongue (Halymenia) is a display-friendly macroalgae that offers light nutrient export without aggressive growth. It does best in stable systems with moderate–high light,...
ARTICLE
Phytoplankton
Phytoplankton isn’t livestock—it’s food web support. Its main value is feeding pods and filter feeders and strengthening the base of the reef ecosystem. When...
ARTICLE
Aiptasia
Aiptasia are fast-spreading pest anemones that hitchhike into reef tanks and sting corals. Catch and control them early—once established, they’re difficult to eradicate.
ARTICLE
Acropora-Eating Flatworm
AEFW are Acropora-specific flatworms that eat coral tissue, causing bite marks, poor polyp extension, and slow SPS decline. They spread mainly through unvetted Acropora...
ARTICLE
Mantis Shrimp (Stomatopoda)
Mantis shrimp are predatory hitchhikers that often reveal themselves through clicking sounds and disappearing snails or hermits. They’re fascinating animals, but not reef-safe in...
ARTICLE
Acropora Red Bugs (Tegastes acroporanus)
Acropora red bugs are tiny parasitic copepods that irritate Acropora, causing reduced polyp extension, dull color, and slowed growth. They spread easily via new...
ARTICLE
Gorilla Crabs
Gorilla/xanthid crabs are common hitchhikers that can become predators in reef tanks, often causing mystery snail and hermit losses. Because many are nocturnal and...
ARTICLE
Ball Anemone
Ball anemones are hardy corallimorph hitchhikers that hide in shaded crevices and feed like tiny ambush predators. They can sting nearby corals and irritate...
ARTICLE
Christmas-Tree Hydroid
Fire/Christmas-tree hydroids are stinging Pennaria colonies that look like tiny feathery “mini trees” on plugs, racks, and sump/overflow surfaces. They can irritate corals—and sting...
ARTICLE
Maxi-Mini Carpet Anemone
Maxi-mini carpet anemones are hardy, colorful anemones that like a sandy nook, moderate-to-high light, gentle flow, and regular meaty feedings. They are extremely sticky...
ARTICLE
Marine Ich (Cryptocaryon irritans)
Marine ich is a contagious parasite that causes white salt-grain spots, flashing, and breathing stress in saltwater fish. It often looks less explosive than...
ARTICLE
Lymphocystis (Lymphocystivirus)
Lymphocystis is a stress-linked viral condition that causes cauliflower-like nodules on fins or skin and usually looks worse than it is. The safest response...
ARTICLE
Bristleworms (Eurythoe spp.)
Bristleworms are common reef hitchhikers that usually act as useful scavengers, but their appearance makes people fear them long before they understand their role....
ARTICLE
Started or starting a saltwater tank. Foundations
A novices to expert on Back to the basics.
ARTICLE
Bearded Fireworm (Hermodice carunculata)
Bearded fireworms are not the same thing as ordinary bristleworms. They can sting, irritate coral, and sometimes eat weakened inverts, so the right move...