What fits a 20 gal high
61 × 30.5 × 41 cm · about 55 L of water61 × 30.5 × 16 in · about 14.5 gal of water
Top 38
- Banded gourami+1
- Endler livebearer+3
Forktail blue-eye+6- Glass bloodfin tetra+8
- Glowlight danio+8
- Golden pencilfish+6
- Guppy+3
Honey gourami+1
Japanese ricefish+6- Pacific blue-eye+6
- Pearl danio+6
- Rose danio+6
- Sailfin molly+3
- Tiger danio+6
- African butterflyfish+1
Betta+1- Blue-back blue-eye+6
- Celebes halfbeak+3
- Celebes rainbowfish+6
- Clown killifish+3
- Common hatchetfish+6
- Delicate blue-eye+8
Dwarf gourami+1- Dwarf molly+3
- Emerald betta+1
- Flyspeck hardyhead+8
- Golden wonder killifish+1
- Honey blue-eye+6
- Kiunga blue-eye+8
- Lampeye killifish+6
- Lyretail killifish+2
Marbled hatchetfish+6- Moonlight gourami+1
- Peaceful betta+1
- Platinum hatchetfish+8
- Popondetta blue-eye+6
Sparkling gourami+1- Spotted blue-eye+6
Middle 109
- American flagfish+1
- Arfak rainbowfish+6
Black neon tetra+6- Black phantom tetra+6
- Black ruby barb+6
- Blackline rasbora+8
- Bleeding heart tetra+6
- Blind cave tetra+6
- Bloodfin tetra+6
- Blue emperor tetra+6
- Blue lyretail+3
- Brilliant rasbora+8
- Buenos Aires tetra+6
- Butterfly splitfin+3
Celestial pearl danio+6- Checker barb+6
- Cherry barb+6
- Cherry spot rasbora+10
- Chinese barb+6
- Colombian tetra+8
- Dusky millions fish+3
Ember tetra+8- Emerald eye rasbora+8
- Fathead minnow+6
- Flag tetra+8
- Flame tetra+8
- Garnet tetra+8
- Glowlight rasbora+8
Glowlight tetra+6- Gold tetra+8
- Golden dwarf barb+8
- Green fire tetra+8
- Grime rainbowfish+6
Harlequin rasbora+6- Head and tail light tetra+8
- Humpbacked limia+3
- Keyhole cichlid+1
- Kubotai rasbora+8
- Lake Wanam rainbowfish+6
Lambchop rasbora+6- Least killifish+5
- Leggett's rainbowfish+6
Lemon tetra+6- Mamberamo rainbowfish+6
- Melon barb+6
- Nana rasbora+8
Neon tetra+6
Ornate tetra+6- Panda tetra+8
- Penguin tetra+8
- Platy+3
- Port acara+1
- Ramu rainbowfish+6
- Red eye tetra+6
- Red phantom tetra+8
- Rosy tetra+8
- Sepik rainbowfish+6
- Silvertip tetra+8
- Spotted rainbowfish+6
- Tami River rainbowfish+6
Threadfin rainbowfish+6- Ticto barb+6
- Upside-down catfish+3
- Variatus platy+3
- Western rainbowfish+6
White cloud mountain minnow+6
X-ray tetra+6- African freshwater pipefish+1
- Amazon leaffish+1
- Australian smelt+8
- Black-banded rainbowfish+6
- Blue tetra+8
- Bluefin notho+3
- Brunei beauty+2
- Cairns rainbowfish+6
Cardinal tetra+6
Chili rasbora+8- Chocolate gourami+4
- Christmas fulu+1
- Debauwi catfish+6
- Dwarf cory+10
- Dwarf pencilfish+8
Dwarf rasbora+8- Emerald dwarf danio+8
- Exquisite rainbowfish+6
- Five-banded barb+8
- Gangetic leaffish+1
- Green neon tetra+10
- Indian glassfish+6
- Lake Mbuta rainbowfish+6
- Licorice gourami+1
- Mountain rainbowfish+6
- Neon blue cichlid+8
- One-spot betta+2
- Orange chromide+1
- Ornate rainbowfish+6
Pea puffer+6- Red dwarf rasbora+8
- Red-tailed redeye puffer+1
- Redline rasbora+8
- Redtail splitfin+3
- Rhomb barb+6
- Sawbwa barb+8
- Slender rainbowfish+6
- Snakehead fighter+2
- Spotted headstander+6
- Striped glass catfish+6
- Tequila splitfin+3
- Whiteseam fighter+2
Bottom 136
- African butterfly cichlid+1
- Agassiz's cory+6
- Bandit cory+6
- Banjo catfish+1
- Black kuhli loach+6
- Brevis shell dweller+2
- Caudopunctatus+1
- Dwarf flag cichlid+1
- Eigenmann's whiptail catfish+1
- Emerald green cory+6
- Firemouth cichlid+1
- Gold laser cory+6
- Goldeneye dwarf cichlid+1
- Julii cory+6
Kuhli loach+6- Multies+3
Panda cory+6- Panda garra+3
Pygmy cory+8- Rainbow cichlid+1
- Raphael catfish+1
Salt and pepper cory+8- San Juan cory+6
- Similis shell dweller+3
- Skunk cory+6
- Spotted Raphael catfish+1
- Striped Raphael catfish+1
Three-line cory+6- Tiger pleco+1
- Abei puffer+1
- Acus twig catfish+1
- Adolfo's cory+6
- Agassiz's dwarf cichlid+2
- Amazon toadfish+1
- Angelicus pleco+1
- Atahualpa dwarf cichlid+2
- Badis+1
- Bearded corydoras+6
- Black cory+6
- Black ocellatus+1
- Black-chin apisto+2
- Black-fin cory+6
- Brichard's telmat+1
- Broad-banded apisto+2
- Bumblebee goby+5
- Butterfly pleco L168+1
- Butterfly xenotilapia+1
- Chanchito+1
- Checkerboard cichlid+1
- Chisumulu labido+3
- Chocolate zebra pleco+1
- Clown pleco+1
Cockatoo dwarf cichlid+1- Compressiceps cichlid+1
- Congo puffer+1
- Dhonti telmat+1
- Dickfeld's julie+1
- Duplicareus cory+6
- Dwarf chain loach+6
- Dwarf green pike cichlid+1
- Dwarf petricola catfish+3
- Dwarf whiptail+1
- Elizabeth's dwarf cichlid+2
- Flagtail cory+6
- Freshwater sole+1
- Frogmouth catfish+1
German blue ram+1- Goby pleco+3
- Golden otocinclus+6
- Gymnogeophagus meridionalis+1
- Hillstream loach+3
- Hogchoker+1
- Hongslo's dwarf cichlid+2
- Hypancistrus contradens+1
- Inca dwarf cichlid+2
- Incolicana cory+6
- Knight goby+1
- L387 pleco+1
- Lacerda's cory+6
- Lata whiptail catfish+1
- Leopard cory+6
- Leopard frog pleco+1
- Loxozonus cory+6
- Lundberg's whiptail+1
- Macmaster's dwarf cichlid+2
- Maingano+3
- Mamore apisto+2
- Mamore resticulosa apisto+2
- Marbled whiptail+1
- Masked julie+1
- Maulbr apisto+1
- Mega clown pleco+1
- Midnight catfish+2
- Ocellatus+1
- Olga cory+6
- Orange-tail apisto+2
- Ornate julie+1
- Otocinclus+6
- Panda dwarf cichlid+2
- Panduro dwarf cichlid+2
- Parnaiba whiptail+1
- Parrot apisto+1
Peacock gudgeon+1- Pearly ocellatus+1
- Peppermint pleco+1
- Petricola catfish+3
- Phuket loach+1
- Prionotos cory+6
- Purple-spotted gudgeon+1
- Rio Negro dwarf cichlid+1
- Royal farlowella+1
- Rupununi dwarf cichlid+2
- Sailfin cory+6
- Scarlet badis+1
- Schwartz's cory+6
- South American bumblebee catfish+1
- Spiny whiptail+1
- Spotfin goby cichlid+1
- Spotted hillstream loach+3
- Spotted rubberlip pleco+1
- Starlight bristlenose pleco+1
- Steindachner's dwarf cichlid+1
- Three-striped dwarf cichlid+1
- Tukano cory+6
- Twig catfish+1
- Two-line cory+6
- Two-striped apisto+2
- Uaupes apisto+1
- Umbrella dwarf cichlid+2
- Vestitus oto+6
- Viejita dwarf cichlid+1
- White-cheek goby+1
- Xenotilapia bathyphilus+6
- Yellow-cheek xenotilapia+6
- Zebra otocinclus+6
- Zebra pleco+1
Clean-up crew 23
- African clawed frog+1
Amano shrimp+1
Assassin snail+1
Cherry shrimp+1- Chinese mystery snail+1
- Dwarf orange crayfish+1
Ghost shrimp+1- Horned nerite snail+1
- Malaysian trumpet snail+1
- Mississippi grass shrimp+1
Mystery snail+1
Nerite snail+1
Ramshorn snail+1
African dwarf frog+1
Bamboo shrimp+1
Bee shrimp+1- Blue pearl shrimp+6
- Cardinal shrimp+1
- Harlequin shrimp+1
- Ninja shrimp+1
- Riffle shrimp+1
- Vampire shrimp+1
- Zebra apple snail+1
Plants 25
Amazon frogbit+1
Amazon sword+1
Anacharis+1
Anubias nana+1
Asian ambulia+1
Bacopa+1
Bucephalandra+1
Cryptocoryne wendtii+1
Duckweed+1
Dwarf hygrophila+1
Dwarf sagittaria+1
Hornwort+1
Java fern+1
Java moss+1
Marimo+1
Red root floater+1
Vallisneria+1
Water spangles+1
Water sprite+1
Water wisteria+1
Downoi+1
Dwarf hairgrass+1
Ludwigia repens+1
Monte Carlo+1
Rotala+1
Questions
What fish can I put in a 20 US gal high tank?
Starting groups of African butterfly cichlid, Agassiz's cory, American flagfish, Arfak rainbowfish, Banded gourami pass our adult space checks. Each choice is assessed separately; check a combined community in the planner.Starting groups of African butterfly cichlid, Agassiz's cory, American flagfish, Arfak rainbowfish, Banded gourami pass our adult space checks. Each choice is assessed separately; check a combined community in the planner.
How much water will this aquarium hold?
With 5 cm substrate, light hardscape, glass and freeboard allowances, the engine estimates 55 L of water. Nominal capacity and usable water differ.With 2 in substrate, light hardscape, glass and freeboard allowances, the engine estimates 14.5 gal of water. Nominal capacity and usable water differ.
Can a larger filter make room for more fish?
Filtration does not change the swimming length or floor space. The engine checks adult size, starting group crowding and territory before bioload.Filtration does not change the swimming length or floor space. The engine checks adult size, starting group crowding and territory before bioload.
How many schooling fish should I start with?
Use the minimum group beside each species below. Agassiz's cory: 6; Arfak rainbowfish: 6. Recheck the plan whenever you add companions.Use the minimum group beside each species below. Agassiz's cory: 6; Arfak rainbowfish: 6. Recheck the plan whenever you add companions.