Flash pleco (L204)
Panaqolus albivermis
Also known as L204, Emperor Pleco, Flash Plec
FreshwaterFish
Care at a glance
- Temperature
- 77–84°F
- 25–29°C
- pH
- 6.0–7.5
- Adult size
- 5.1 in
- 13 cm
- Minimum tank
- 40 gal
- 150 L
- Temperament
- Mostly peaceful
- Social behavior
- Solitary
- Swim level
- Bottom
- Difficulty
- Medium
- Breeding
- Medium
- Rarity
- Rare
- Family
- Loricariidae
- Origin
- Rio San Alejandro, a tributary of the Rio Ucayali in the upper Amazon of Peru.
Overview
A medium wood-eating pleco for a tank around 150 liters with plenty of driftwood. Its gut is built for wood and fiber, so keep soft wood available at all times and supplement with sinking wood-based and vegetable pellets and blanched zucchini, with only occasional protein. Fairly peaceful but territorial around its chosen cave or log.
In the wild
Found in fast, well-oxygenated Peruvian streams full of sunken branches and root tangles. Like the rest of the Panaqolus group it is a wood eater, rasping at driftwood and digesting the biofilm and fiber, so submerged wood is not decoration but part of its diet. Needs driftwood, caves, and clean flowing water.
Good to know
Described in 2017 as Panaqolus albivermis, the name pointing to the white worm-like lines on a dark body. It is a small member of the wood-eating pleco group. The fine cream stripes give it the flash and emperor trade names.
Did you know
Wood-eating plecos like the flash pass a lot of fine sawdust-like waste, a normal sign that they really are rasping and digesting their driftwood.
Weekly picks
Tank mates
Flash pleco (L204) is a mostly peaceful, solitary species that keeps to the bottom. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Debauwi cat
Pareutropius debauwi
Freshwater5.1 in (13 cm) · 40 gal (150 L)73–82°F (23–28°C)
Pike topminnow
Belonesox belizanus
Freshwater7.9 in (20 cm) · 44 gal (165 L)73–82°F (23–28°C)
Dragon-head whiptail
Rhadinoloricaria macromystax
Freshwater5.7 in (14.5 cm) · 40 gal (150 L)73–82°F (23–28°C)
Black acara
Cichlasoma bimaculatum
Freshwater7.1 in (18 cm) · 40 gal (150 L)68–82°F (20–28°C)
Celebes halfbeak
Nomorhamphus liemi
Freshwater3.5 in (9 cm) · 40 gal (150 L)68–77°F (20–25°C)
Spotted raphael catfish
Agamyxis pectinifrons
Freshwater5.9 in (15 cm) · 40 gal (150 L)72–79°F (22–26°C)
Common questions
What size tank does a Flash pleco (L204) need?
A Flash pleco (L204) needs at least 40 gal (150 L). It spends most of its time in the bottom.
What temperature and pH does a Flash pleco (L204) need?
A Flash pleco (L204) is comfortable at 77–84°F (25–29°C) with a pH of 6.0–7.5.
How big does a Flash pleco (L204) get?
An adult Flash pleco (L204) reaches about 5.1 in (13 cm).
Related species
5.1 in (13 cm)40 gal (150 L)77–84°F (25–29°C)Tiger pleco (L002)
Panaqolus sp. L002
5.1 in (13 cm) · 40 gal (150 L)
4.7 in (12 cm)30 gal (112 L)75–84°F (24–29°C)Nocturnal panaqolus
Panaqolus nocturnus
4.7 in (12 cm) · 30 gal (112 L)
3.5 in (9 cm)20 gal (75 L)73–82°F (23–28°C)Clown pleco
Panaqolus maccus
3.5 in (9 cm) · 20 gal (75 L)
5.5 in (14 cm)53 gal (200 L)77–84°F (25–29°C)Galaxy panaqolus
Panaqolus albomaculatus
5.5 in (14 cm) · 53 gal (200 L)
3.9 in (10 cm)42 gal (160 L)77–84°F (25–29°C)Iquitos tiger pleco
Panaqolus changae
3.9 in (10 cm) · 42 gal (160 L)
3.1 in (8 cm)42 gal (160 L)77–84°F (25–29°C)Bloodred tiger pleco
Panaqolus claustellifer
3.1 in (8 cm) · 42 gal (160 L)
