Shoal & Stem

Species Catalogue

1,570 species — care guides, community photos, water parameters, and tank-mate compatibility.

fish
easy

Pitbull Pleco

Parotocinclus jumbo

fishfreshwater
2.2″·20+ gal·group 4+·peaceful
fish
easy

Platinum Guppy

Poecilia reticulata

fishfreshwater
2.5″·10+ gal·group 3+·peaceful
fish
medium

Platinum Hatchetfish

Thoracocharax stellatus

fishfreshwater
1.5″·15+ gal·group 6+·peaceful
fish
easy

Platinum Molly

Poecilia sphenops

fishfreshwater
3″·20+ gal·group 3+·peaceful
coral
medium

Pocillopora

Pocillopora spp.

coralsaltwater
2″·50+ gal·peaceful
plant
medium

Pogostemon Deccanensis

Pogostemon deccanensis

plantfreshwater
Midground·Moderate growth
plant
medium

Pogostemon Erectus

Pogostemon erectus

plantfreshwater
High light·Medium growth
plant
medium

Pogostemon Helferi

Pogostemon helferi

plantfreshwater
Foreground·Medium to high light·Slow growth
plant
medium

Pogostemon Kimberley

Pogostemon sp. 'Kimberley'

plantfreshwater
Midground·Moderate growth
plant
medium

Pogostemon Quadrifolius

Pogostemon quadrifolius

plantfreshwater
Background·Fast growth
plant
medium

Pogostemon Yatabeanus

Pogostemon yatabeanus

plantfreshwater
Midground·Medium growth
fish
medium

Polka Dot Loach

Botia kubotai

fishfreshwater
4″·40+ gal·group 3+·peaceful
fish
easy

Polystictus Corydoras

Corydoras polystictus

fishfreshwater
2″·15+ gal·group 6+·peaceful
crab
medium

Pom Pom Crab

Ptychognathus barbatus

crabfreshwater
0.75″·10+ gal·peaceful
fish
medium

Pompom Goldfish

Carassius auratus

fishfreshwater
6″·20+ gal·group 2+·peaceful
fish
medium

Porcupine Puffer

Diodon holocanthus

fishsaltwater
12″·100+ gal·semi-aggr.
coral
medium

Porites Coral

Porites lobata

coralsaltwater
2″·30+ gal·peaceful
fish
easy

Porthole Catfish

Dianema longibarbis

fishfreshwater
4″·30+ gal·group 4+·peaceful
shrimp
medium

Poso Orange Shrimp

Caridina glaubrechti

shrimpfreshwater
1.2″·10+ gal·group 6+·peaceful
plant
medium

Potamogeton Octandrus

Potamogeton octandrus

plantfreshwater
Midground·Moderate growth
fish
hard

Potter's Angelfish

Centropyge potteri

fishsaltwater
5″·55+ gal·semi-aggr.
fish
hard

Powder Blue Tang

Acanthurus leucosternon

fishsaltwater
9″·100+ gal·semi-aggr.
terrestrial
easy

Prayer Plant

Maranta leuconeura

terrestrialfreshwater
Low to medium indirect light·Moderate growth
fish
easy

Pretty Tetra

Hemigrammus pulcher

fishfreshwater
1.75″·20+ gal·group 6+·peaceful
coral
easy

Pulsing Xenia

Xenia spp.

coralsaltwater
2″·30+ gal·peaceful
shrimp
easy

Pumpkin Shrimp

Neocaridina davidi

shrimpfreshwater
1.5″·5+ gal·group 10+·peaceful
fish
easy

Purple Firefish

Nemateleotris decora

fishsaltwater
3.5″·20+ gal·group 2+·peaceful
terrestrial
easy

Purple Heart

Tradescantia pallida

terrestrialfreshwater
Bright indirect light·Fast growth
plant
hard

Purple Ludwigia

Ludwigia glandulosa

plantfreshwater
Midground
shrimp
easy

Purple Neocaridina

Neocaridina davidi

shrimpfreshwater
1.2″·5+ gal·group 6+·peaceful
coral
medium

Purple Sea Fan

Gorgonia ventalina

coralsaltwater
2″·30+ gal·peaceful
fish
medium

Purple Tang

Zebrasoma xanthurum

fishsaltwater
8″·75+ gal·semi-aggr.
terrestrial
easy

Purple Waffle Plant

Strobilanthes alternata

terrestrialfreshwater
Medium to bright indirect light·Moderate growth
plant
easy

Purple-backed Duckweed

Ricciocarpus natans

plantfreshwater
Floating·Fast growth
plant
easy

Pygmy Chain Sword Red

Helanthium tenellum 'Red'

plantfreshwater
Foreground·Moderate growth
fish
medium

Pygmy Hatchetfish

Carnegiella myersi

fishfreshwater
1″·10+ gal·group 8+·peaceful