Species Catalogue
1,570 species — care guides, community photos, water parameters, and tank-mate compatibility.
Betta Persephone
Betta persephone
Betta Picta
Betta picta
Betta Pugnax
Betta pugnax
Betta Rubra
Betta rubra
Betta Simorum
Betta simorum
Betta Smaragdina
Betta smaragdina
Betta Stigmosa
Betta stigmosa
Betta Taeniata
Betta taeniata
Betta Unimaculata
Betta unimaculata
Bicolor Blenny
Ecsenius bicolor
Bird Wrasse
Gomphosus varius
Bird's Nest Coral
Seriatopora hystrix
Black Bar Endler
Poecilia wingei
Black Beard Algae
Audouinella sp.
Dense, dark grey-to-black tufts that cling stubbornly to plants, hardscape, and equipment. One of the most frustrating nuisance algaes for planted tank keepers. Caused by CO₂ fluctuation and low or inconsistent carbon dioxide levels. Spot-treat with liquid carbon (Excel) or hydrogen peroxide.
Black Calvus
Altolamprologus calvus
Black Devil Snail
Faunus ater
Black Ghost Knifefish
Apteronotus albifrons
Black Harlequin Rasbora
Trigonostigma heteromorpha
Black King Kong Shrimp
Caridina logemanni
Black Lace Angelfish
Pterophyllum scalare
Black Lyretail Molly
Poecilia sphenops
Black Mystery Snail
Pomacea bridgesii
Black Paradisefish
Macropodus spechti
Black Racer Nerite Snail
Neritina pulligera
Black Rili Shrimp
Neocaridina davidi
Black Rose Shrimp
Neocaridina davidi
Black Sailfin Molly
Poecilia latipinna
Black Skirt Tetra
Gymnocorymbus ternetzi
Black Swordtail
Xiphophorus hellerii
Black-Winged Hatchetfish
Carnegiella marthae
Blackedge Tetra
Tyttocharax madeirae
Blackfin Pearlfish
Austrolebias nigripinnis
Blanket Weed
Cladophora glomerata
Dense, rough-textured mats of dark green filaments that blanket pond plants and surfaces. Common in outdoor ponds and highly nutrient-rich tanks. More coarse and branched than soft hair algae. Difficult to eradicate fully — physically remove as much as possible before treating with algaecide or reducing nutrients aggressively.
Blastomussa
Blastomussa wellsi
Bleeding Heart Tetra
Hyphessobrycon erythrostigma
Bleher's Rainbowfish
Chilatherina bleheri