Reference library

Aquarium disease database - 50 conditions + treatments

50-entry aquarium disease reference library. Symptoms, treatment protocols, and prevention for freshwater + saltwater + pond conditions. Reviewed by the Fast Aquatics husbandry team.

AEFW (Acropora-Eating Flatworms)AEFW (Acropora-Eating Flatworms) aquarium disease guide. AEFW (Amakusaplana acro... Aiptasia anemonesAiptasia anemones saltwater aquarium disease guide. Aiptasia (glass anemones) ar... Ammonia PoisoningAmmonia Poisoning aquarium disease guide. Ammonia poisoning happens when NH3/NH4... Anchor Worm (Lernaea)Anchor worms (Lernaea) are visible white-green parasites (0.5-1 inch) protruding... Argulus (Fish Lice)Argulus (fish lice) are visible flat parasitic crustaceans (4-8mm) attached to f... Argulus / Fish louse (Argulus spp.)Argulus (fish lice) are flat, disc-shaped crustaceans that attach to fish skin a... Asterina StarfishAsterina Starfish aquarium disease guide. Asterina starfish are tiny (5-15mm) st... Bacterial gill disease (Flavobacterium branchiophilum)Bacterial gill disease (Flavobacterium branchiophilum) is a common freshwater ba... Brooklynella (clownfish disease) (Brooklynella hostilis)Brooklynella hostilis is an aggressive ciliate parasite that strikes newly-impor... Brown Jelly Disease (LPS coral)Brown Jelly Disease (LPS coral) saltwater aquarium disease guide. Brown jelly di... Bryopsis (feather algae)Bryopsis (feather algae) aquarium disease guide. Bryopsis is a tough fern-like m... Camallanus worms (Camallanus cotti)Camallanus cotti is a freshwater nematode parasite that protrudes from the fish ... Carp pox (Cyprinid herpesvirus 1 (CyHV-1))Carp pox is a viral skin disease causing waxy white-grey growths on koi + goldfi... Columnaris (Flexibacter columnaris)Columnaris (Flexibacter columnaris) freshwater aquarium disease guide. Columnari... Costia (Ichthyobodo) (Ichthyobodo necator)Costia (Ichthyobodo necator) is a microscopic flagellate that causes a blue-grey... Cyanobacteria (red slime / black beard)Cyanobacteria (red slime / black beard) aquarium disease guide. Cyanobacteria (c... DinoflagellatesDinoflagellates saltwater aquarium disease guide. Dinoflagellates ( Dropsy (Edema)Dropsy (Edema) aquarium disease guide. Dropsy (edema) is a fish disease where fl... Fin RotFin Rot both aquarium disease guide. Fin rot is a bacterial infection (typically... Fish pox (Lymphocystis-related)Fish pox (lymphocystis) is a viral skin disease causing white-grey nodules on fi... Fish TB (Mycobacterium)Fish TB (Mycobacterium marinum) is a slow-progressing bacterial infection that c... Freshwater Ich (Ichthyophthirius multifiliis)Freshwater Ich (Ichthyophthirius multifiliis) freshwater aquarium disease guide.... Fungal infection (Saprolegnia) (Saprolegnia parasitica)Saprolegnia parasitica is the cotton-wool fungal infection of freshwater fish + ... Fungus (Saprolegnia)Fungus (Saprolegnia) aquarium disease guide. Saprolegnia is a water mold that pr... Gas bubble disease (Supersaturation gas embolism)Gas bubble disease occurs when supersaturated water releases gas bubbles inside ... GHA (Green Hair Algae)GHA (Green Hair Algae) aquarium disease guide. GHA (Green Hair Algae) is filamen... Gill + Body FlukesGill + Body Flukes aquarium disease guide. Gill + body flukes are flatworm paras... Gold Dust Disease (Velvet variant)Gold dust disease (Piscinoodinium) is the freshwater version of velvet. Fine gol... Hexamita (Hole-In-The-Head Parasite)Hexamita is an internal protozoan parasite that causes white stringy feces, weig... HLLE (Head and Lateral Line Erosion)HLLE (Head and Lateral Line Erosion) both aquarium disease guide. HLLE (Head and... Hole In The Head (HITH/HLLE) (Spironucleus + nutritional deficiency)Hole In The Head (HITH) and Head + Lateral Line Erosion (HLLE) are linked condit... Koi herpesvirus (KHV) (Cyprinid herpesvirus 3)Koi herpesvirus (KHV) is a lethal viral infection of koi + common carp. No cure.... Lymphocystis (cauliflower disease)Lymphocystis (cauliflower disease) aquarium disease guide. Lymphocystis is a vir... Marine Ich (Cryptocaryon irritans)Marine Ich (Cryptocaryon irritans) saltwater aquarium disease guide. Marine ich ... Marine Velvet (Amyloodinium ocellatum)Marine Velvet (Amyloodinium ocellatum) saltwater aquarium disease guide. Velvet ... Microsporidia (Glugea) (Glugea spp.)Glugea is a microsporidian parasite that forms visible white cysts in fish tissu... Mouth Rot (Columnaris on Mouth)Mouth rot is a bacterial infection that causes white/grey patches around the fis... Neon Tetra Disease (Pleistophora hyphessobryconis)Neon Tetra Disease (NTD) is a microsporidian parasite that causes white patches ... Piscine mycobacteriosis (Mycobacterium marinum + M. fortuitum)Piscine mycobacteriosis (fish TB) is a slow chronic bacterial infection causing ... Planaria (flatworms in freshwater)Planaria (flatworms in freshwater) aquarium disease guide. Planaria are small fl... Polyclad (turbellarian) flatworms (Convolutriloba spp., Waminoa spp.)Polyclad/turbellarian flatworms (Convolutriloba retrogemma "rust brown"... Popeye (Exophthalmia)Popeye (Exophthalmia) both aquarium disease guide. Popeye (exophthalmia) is the ... Red Bugs on AcroporaRed Bugs on Acropora aquarium disease guide. Red bugs (Tegastes acroporanus) are... Skin + gill flukes (Dactylogyrus, Gyrodactylus) (Dactylogyrus + Gyrodactylus)Skin + gill flukes (Dactylogyrus + Gyrodactylus) are monogenean parasites that a... Swim Bladder DiseaseSwim Bladder Disease aquarium disease guide. Swim bladder disease is a malfuncti... Tang Spot Syndrome (Lateral-line disease in tangs)Tang Spot Syndrome (TSS) is a head + lateral line erosion specific to tangs + su... Trichodina (Trichodina spp.)Trichodina is a saucer-shaped protozoan parasite that triggers excess slime coat... Turf algae (Cladophora + filamentous greens)Turf algae is dense filamentous green algae that carpets rockwork + glass. Commo... Uronema marinum (Uronema marinum)Uronema marinum is a free-living scuticociliate that becomes parasitic in stress... Vermetid SnailsVermetid Snails aquarium disease guide. Vermetid snails are sessile snails that ...