FinsHQ Encyclopedia

Fish & Livestock

Care guides for freshwater fish, marine species, and invertebrates — including water parameters, tank requirements, and where to buy.

6,160 species

advanced

Ornate Paradisefish

Malpulutta kretseri

5 cm40 L2327°C
intermediate

Ornate Pimelodus

Pimelodus ornatus

25 cm300 L2228°C
intermediate

Ornate Rainbowfish

Rhadinocentrus ornatus

6 cm60 L2026°C
beginner

Ornate Tetra

Hyphessobrycon bentosi

5 cm80 L2328°C
intermediate

Ornate Wrasse (Halichoeres ornatissimus)

Halichoeres ornatissimus

17 cm200 L2327°C
intermediate

Ornate-tailed Licorice Gourami

Parosphromenus ornaticauda

3.5 cm30 L2228°C
intermediate

Ortega's Cory

Corydoras ortegai

4.5 cm60 L2327°C
Moderate

Orteguasa Tetra

Hyphessobrycon orteguasae

4 cm60 L2428°C
intermediate

Orthogoniata River Loach

Homaloptera orthogoniata

9 cm120 L2226°C
intermediate

Orthonotus Nothobranch

Nothobranchius orthonotus

6 cm40 L2026°C
beginner

Oryzias latipes Medaka White

Oryzias latipes

3.5 cm10 L1028°C
beginner

Oryzias woworae Daisy's Ricefish

Oryzias woworae

2.5 cm20 L2428°C
Easy

Oryzias woworae Daisy's Ricefish 10-Pack

Oryzias woworae

3 cm20 L2230°C
intermediate

Osaka Ranchu Goldfish

Carassius auratus

20 cm150 L1022°C
beginner

Oscar

Astronotus ocellatus

35 cm300 L2328°C
intermediate

Oscar Albino

Astronotus ocellatus

35 cm400 L2327°C
intermediate

Oscar Red

Astronotus ocellatus

35 cm400 L2327°C
intermediate

Oscar Tiger

Astronotus ocellatus

35 cm400 L2327°C
beginner

Oscura heterospila

Oscura heterospila

20 cm250 L2430°C
intermediate

Osphronemidae — Snakehead 'Channa bleheri' Red Snakehead

Channa bleheri

20 cm60 L1525°C
intermediate

Osphronemus exodon

Osphronemus exodon

50 cm500 L2228°C
intermediate

Osphronemus gorami 'Giant Gourami' Juvenile

Osphronemus gorami

60 cm1000 L2228°C
advanced

Osteoglossum bicirrhosum 'Silver Arowana'

Osteoglossum bicirrhosum

120 cm1500 L2430°C
intermediate

Otocinclus (Mixed)

Otocinclus spp.

5 cm60 L2126°C
intermediate

Otocinclus 3-pack

Otocinclus sp.

5 cm40 L2127°C
Otocinclus Affinis (Dwarf Suckermouth Catfish)
MODERATE

Otocinclus Affinis (Dwarf Suckermouth Catfish)

Otocinclus affinis

4.5 cm40 L2026°C
intermediate

Otocinclus bororo

Otocinclus bororo

3.5 cm40 L2026°C
Otocinclus Catfish
MODERATE

Otocinclus Catfish

Otocinclus vestitus

4.5 cm40 L2026°C

Otocinclus Catfish – 10-pack

Otocinclus Catfish – 5-pack

Otocinclus Catfish – Single

intermediate

Otocinclus Catfish 5-pack

Otocinclus affinis

5 cm40 L2226°C
intermediate

Otocinclus caxarari

Otocinclus caxarari

3.5 cm40 L2227°C
beginner

Otocinclus flexilis

Otocinclus flexilis

5 cm40 L1624°C
beginner

Otocinclus hoppei

Otocinclus hoppei

4 cm40 L2026°C
intermediate

Otocinclus huaorani

Otocinclus huaorani

3.5 cm40 L2227°C
intermediate

Otocinclus macrospilus

Otocinclus macrospilus

4.5 cm40 L2026°C
MODERATE

Otocinclus Macrospilus (Golden Oto)

Otocinclus macrospilus

5 cm40 L2026°C
intermediate

Otocinclus mangaba

Otocinclus mangaba

3.5 cm40 L2126°C
intermediate

Otocinclus mariae

Otocinclus mariae

4 cm40 L2026°C
intermediate

Otocinclus mimulus

Otocinclus mimulus

3.5 cm40 L2026°C
intermediate

Otocinclus muckuturi

Otocinclus muckuturi

3.5 cm40 L2126°C
intermediate

Otocinclus mura

Otocinclus mura

3.5 cm40 L2227°C
intermediate

Otocinclus putumayensis

Otocinclus putumayensis

4 cm40 L2227°C
intermediate

Otocinclus tapirape

Otocinclus tapirape

4 cm40 L2227°C
intermediate

Otocinclus travassosi

Otocinclus travassosi

4 cm40 L2026°C
intermediate

Otocinclus vestitus

Otocinclus vestitus

4 cm40 L2026°C
beginner

Otocinclus vittatus

Otocinclus vittatus

4.5 cm40 L2026°C
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