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

intermediate

Ruby Red Pencilfish Nannostomus mortenthaleri

Nannostomus mortenthaleri

3.5 cm60 L2529°C
advanced

Ruby Tetra

Axelrodia reisei

2 cm40 L2528°C
intermediate

Ruby Tetra (Axelrodia riesei)

Axelrodia riesei

30 L2428°C
beginner

Rudd

Scardinius erythrophthalmus

45 cm200 L522°C
beginner

Rudd (Scardinius erythrophthalmus)

Scardinius erythrophthalmus

500 L422°C
beginner

Rugose Land Hermit Crab

Coenobita rugosus

6 cm60 L2430°C
intermediate

Ruigi Synodontis

Synodontis rufigiensis

18 cm180 L2227°C
intermediate

Rummy Nose Rasbora

Sawbwa resplendens

40 L2026°C
Rummy Nose Tetra
Intermediate

Rummy Nose Tetra

Hemigrammus bleheri

5 cm100 L2428°C
beginner

Rummy Nose Tetra Hemigrammus rhodostomus 10-Pack

Hemigrammus rhodostomus

5 cm60 L2428°C
Rummynose Rasbora (Sawbwa resplendens)
Intermediate

Rummynose Rasbora (Sawbwa resplendens)

Sawbwa resplendens

4 cm60 L2024°C
Rummynose Tetra (Hemigrammus rhodostomus)
Intermediate

Rummynose Tetra (Hemigrammus rhodostomus)

Hemigrammus rhodostomus

5 cm100 L2428°C
intermediate

Rupununi Apistogramma

Apistogramma rupununi

6 cm60 L2428°C
beginner

Rust Cory

Corydoras rabauti

6 cm60 L2227°C
beginner

Rusty Cichlid

Iodotropheus sprengerae

11 cm150 L2428°C
beginner

Rusty Cichlid (Iodotropheus sprengerae)

Iodotropheus sprengerae

120 L2428°C
beginner

Rusty Crayfish

Orconectes rusticus

10 cm80 L1024°C
beginner

Rusty Pleco

Hypostomus faveolus

30 cm250 L2228°C
intermediate

Rusty Pygmy Angelfish (Centropyge ferrugata)

Centropyge ferrugata

120 L2227°C
intermediate

Ryukin Calico Goldfish

Carassius auratus

150 L1022°C
beginner

Ryukin Goldfish Red and White

Carassius auratus (Ryukin)

18 cm150 L1022°C
intermediate

Ryukin Red/White Goldfish

Carassius auratus

150 L1022°C
intermediate

Ryukin Yellow Goldfish

Carassius auratus

150 L1022°C
advanced

Saber-tooth Tetra

Raphiodon vulpinus

35 cm800 L2428°C
intermediate

Sacrimontis Krib

Pelvicachromis sacrimontis

9 cm80 L2427°C
intermediate

Saddle Cichlid

Aequidens tetramerus

15 cm150 L2328°C
intermediate

Saddleback Clownfish

Amphiprion polymnus

100 L2428°C
intermediate

Saddleback Nothobranch

Nothobranchius orthonotus

7 cm40 L2026°C
intermediate

Saddled Bichir

Polypterus endlicheri

75 cm400 L2630°C
intermediate

Sahyadri Barb

Puntius sahyadriensis

7 cm80 L2227°C
intermediate

Sahyadria denisonii 'Roseline Shark'

Sahyadria denisonii

15 cm200 L1825°C
intermediate

Sail-fin Apistogramma

Apistogramma velifera

7 cm80 L2529°C
advanced

Sailfin Catfish

Leiarius pictus

60 cm1000 L2228°C
intermediate

Sailfin Characin

Crenuchus spilurus

80 L2327°C
beginner

Sailfin Molly

Poecilia latipinna var.

15 cm120 L2328°C
Sailfin Molly (Poecilia velifera)
Beginner

Sailfin Molly (Poecilia velifera)

Poecilia velifera

15 cm150 L2428°C
beginner

Sailfin Pleco

Pterygoplichthys multiradiatus

50 cm400 L2228°C
beginner

Sailfin Pleco (Pterygoplichthys gibbiceps)

Pterygoplichthys gibbiceps

400 L2228°C
advanced

Sailfin Synodontis

Synodontis velifer

45 cm500 L2227°C
intermediate

Sailfin Tang (Zebrasoma veliferum)

Zebrasoma veliferum

500 L2427°C
beginner

Sailfin Tetra

Iguanodectes spilurus

8 cm120 L2228°C
Sajica Cichlid (Cryptoheros sajica)
Intermediate

Sajica Cichlid (Cryptoheros sajica)

Cryptoheros sajica

12 cm120 L2227°C

Sakura Cherry Shrimp – 10-pack

Sakura Cherry Shrimp – 5-pack

beginner

Sakura Red Shrimp

Neocaridina davidi var.

3 cm20 L1826°C
beginner

Salarias fasciatus 'Sailfin Blenny / Algae Blenny'

Salarias fasciatus

14 cm100 L2427°C
advanced

Salinator Puffer

Carinotetraodon salivator

4.5 cm50 L2428°C
advanced

Salivator Puffer

Pao cf. salivator

14 cm150 L2428°C
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