Super Red Bristlenose Pleco (Ancistrus sp.)

The Super Red Bristlenose Pleco adds warm orange-to-red colour and an engaging bottom-dwelling presence to a freshwater aquarium. Its armoured body and sucker-shaped mouth are characteristic of Ancistrus, while its adult size is more manageable than that of the very large catfish often sold as common plecos.

Each quantity supplies one unsexed fish in the selected size option. This is a captive-bred ornamental colour strain, listed as Ancistrus sp. because the exact species and ancestry are not established. No breeding pair, guaranteed sex or particular adult shade is included. The four gallery images are stylised representative illustrations; the two-fish scene does not mean two fish are supplied.

Choosing your size option

The centimetre options describe approximate dispatch size bands: 2.5–3 cm, 3–3.5 cm, 4.5–5 cm and 5.5–7 cm. The XL option is a larger size label without a confirmed centimetre range. Check the live selector for current availability, and contact us before ordering if an exact size is essential for an existing aquarium.

Young fish may have less developed colour and fewer visible snout bristles than the illustrations suggest. Bristles, body shape and colour vary with age, sex and individual development. A larger option is not automatically a male or a breeding-ready fish. Choose the size that suits your current setup while allowing for the adult it will become.

Adult size and aquarium space

Plan for an adult around 12–15 cm, using 15 cm as the safer upper guide for this listing. Use at least 90 litres for one typical adult, in line with our current bristlenose care guide; 100 litres or more is preferable once substrate and decoration reduce usable space. A long, usable floor area is more valuable than volume concentrated in a narrow, tall tank.

Provide at least one secure cave, shaded cover and smooth surfaces for resting and grazing. Position the cave so a fish can retreat without being trapped by another bottom dweller. Wood and suitable planting help make the aquarium feel sheltered, but leave access for feeding and cleaning.

This fish should not be added to an immature aquarium as a solution to algae. It needs an established biological filter, reliable oxygenation and routine maintenance just like the other livestock.

Water and routine care

The existing stock guidance uses a stable temperature of 24–27°C and pH 6.0–7.5, with 4–12 dGH as a practical hardness range aligned with our current care guide. Confirm the holding water if you are matching an established setup, particularly where hardness differs substantially. Avoid rapid chemical changes. Keep ammonia and nitrite at zero, and use water testing to guide maintenance rather than judging quality by clarity alone.

Remove waste from open substrate and around feeding areas during regular partial water changes. Condition replacement water and match its temperature appropriately. Keep the filter functioning well and check for blocked intakes. The pleco's ability to graze surfaces does not replace water changes or make a heavily stocked aquarium self-cleaning.

Feeding a Super Red Bristlenose

Use a complete sinking food suitable for loricariid catfish as the staple. Add appropriate plant-rich variety and occasional suitable supplementary foods. Biofilm and some algae provide grazing opportunities, but neither is a dependable complete diet on its own.

Offer food where the pleco can reach it without having to compete with faster mid-water fish. Evening feeding can help if it remains hidden during the day. Check that food is actually being eaten, and remove leftovers before they break down. A rounded, well-conditioned body is more useful to monitor than how much algae has disappeared from the glass.

Temperament and tank mates

Super Red Bristlenoses are generally calm with suitable mid-water companions, but they can defend caves and feeding space against other plecos or similarly shaped fish. A fish described as peaceful can still be territorial around a valued shelter.

Choose companions with overlapping water requirements, enough room and no tendency to harass or swallow the pleco. Adding another bristlenose requires more floor space, separate caves, visual barriers and a plan to separate persistent fighters. Buying two fish does not establish that they can share a small aquarium or form a pair.

Other bottom dwellers also need their own resting and feeding opportunities. Judge the complete stock list and layout rather than assuming that fish using different parts of the aquarium will never compete.

Colour, bristles and the gallery

“Super Red” is a domestic trade name for the colour strain, not a promise of a uniform red finish. Individuals can show different orange-red tones, darker marks and changes as they grow. Lighting and background affect the colour you see.

The gallery is artwork, with stylised body detail and colour. It should not be used to judge the precise anatomy, bristle development or shade of current stock. It is also not evidence of a named breeder, wild locality or pedigree. Ask about current-stock photographs if the appearance of the available fish is central to your choice.

Arrival and further guidance

Have the mature aquarium ready before delivery and follow the arrival instructions promptly. Observe appetite, breathing and shelter use as the fish settles. Use quarantine where appropriate for an established collection, and seek advice if a fish is persistently excluded from food or shows a sudden change in condition.

Our bristlenose pleco care guide provides further reading, while the bristlenose collection lets you compare other strains. Check each listing individually: different Ancistrus species and trade forms are not interchangeable in every setup.

Use the selector for current size availability and price. Read the delivery information and Live Arrival Guarantee terms before ordering, and contact us if you need clarification about the XL grade or the available stock.