Species profile

Omothymus violaceopes Care Guide

Omothymus violaceopes, usually known in the hobby as the Singapore Blue Tarantula, is an Old World arboreal tarantula from Peninsular Malaysia and Singapore. Adults reach up to about 25–28 cm (10–11 in) and growth is fast. Good care comes down to matching the enclosure to the species' natural lifestyle, keeping fresh water available and making small adjustments from what the spider actually does.

Common names: Singapore Blue Tarantula

Older / hobby names: Lampropelma violaceopes, Lampropelma violaceopedes

Form / locality: Old Lampropelma names remain common in hobby searches; use Omothymus violaceopes as the canonical name

Omothymus violaceopes
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At a glance

Quick facts

World
Old World
Origin
Peninsular Malaysia and Singapore
Lifestyle
Arboreal
UK hobby rarity
Uncommon
Maximum size
Up to about 25–28 cm (10–11 in)
Growth rate
Fast
Male lifespan
Around 4–5 years
Female lifespan
Around 12–14 years
Temperament
Extremely fast and defensive when exposed; highly reclusive when given a secure retreat
Venom
Medically significant Old World venom; severe pain and systemic symptoms are possible
Temperature
23–28°C
Moisture / humidity
Moisture-dependent setup with deep lower substrate, good ventilation and a constant water source
CITES
Not CITES-listed
Lifestyle note
Very large arboreal that also uses deep retreats and may burrow substantially, especially when young
Form / locality
Old Lampropelma names remain common in hobby searches; use Omothymus violaceopes as the canonical name

What to expect

Singapore Blue Tarantulas come from Peninsular Malaysia and Singapore and are kept as arboreal tarantulas. Adults reach up to about 25–28 cm (10–11 in), with fast growth. In the UK hobby, the species is currently best described as uncommon.

Do not expect every Singapore Blue Tarantula to behave identically. Appetite, retreat use, webbing and confidence in the open can vary between individuals, so use the species' normal lifestyle as a guide and adjust to the behaviour of the individual spider.

Enclosure setup

Singapore Blue Tarantulas are arboreal, so the enclosure should provide useful height, an upright cork retreat and several places for webbing to attach. A tall empty box is not enough; the spider needs structure in the upper half of the enclosure and a retreat it can settle into.

For juveniles, scale the enclosure to the spider rather than the eventual adult size. As Omothymus violaceopes grows, increase the enclosure height and the room around the retreat while keeping the water dish and door easy to reach without tearing through the main web.

Temperature and room placement

A practical temperature range for Omothymus violaceopes is 23–28°C. Stable room conditions are more useful than chasing a precise number every hour. Check the shelf where the enclosure actually sits, especially during very warm weather and through winter.

For Omothymus violaceopes, keep the enclosure away from direct sunlight, radiators and electronics that create local hot spots. Do not attach a heat mat directly to the enclosure; if the room is genuinely too cold, warming the room is easier to control than creating one concentrated hot surface.

Moisture, water and ventilation

For Singapore Blue Tarantulas, the moisture approach is straightforward. Moisture-dependent setup with deep lower substrate, good ventilation and a constant water source. You do not need every part of the substrate to be equally wet, and persistent condensation or a stale smell usually means the enclosure is staying too damp.

Keep a clean water dish available for Omothymus violaceopes once the spider is large enough to use one safely. Smaller juvenile enclosures can dry faster than adult setups, so adjust how often you add water to the actual drying rate rather than following a fixed calendar.

Feeding

Feed Singapore Blue Tarantulas according to their size, appetite and abdomen rather than a fixed weekly schedule. Use established feeder insects that the spider can overpower without a long struggle, and remove live prey if it is ignored.

Young spiders usually eat more regularly while they are growing. Adults can go much longer between meals. If Omothymus violaceopes begins refusing prey and spends more time hidden, premoult is one of the first normal explanations to consider.

Growth and moulting

Growth in Omothymus violaceopes is fast. Young Singapore Blue Tarantulas generally moult more often than large juveniles and adults, and appetite often changes as a moult approaches.

During premoult in Omothymus violaceopes, remove live prey and keep fresh water available. After a moult, leave the spider undisturbed until the new exoskeleton has hardened and the fangs have darkened before offering food again.

Temperament and safe maintenance

Singapore Blue Tarantulas should be treated as hands-off animals. Use long tools for maintenance, keep a catch cup ready when rehousing and assume the spider may move quickly when the enclosure is opened.

Do not use handling as part of routine care. With an Old World species such as Omothymus violaceopes, good enclosure design matters because it lets you refill water, remove leftovers and carry out maintenance without forcing close contact.

Male and female lifespan

Male Omothymus violaceopes are generally expected to live around 4–5 years, while females can live 12–14 years. These are broad captive ranges, not exact lifespans, and individual growth history can shift maturity earlier or later.

Female Omothymus violaceopes continue moulting after maturity. A mature male eventually reaches his ultimate moult and may become more active around the enclosure while feeding less often. Keep moult dates if you want a clearer picture of age, growth and sex over time.

UK availability and naming

In the UK hobby, Singapore Blue Tarantulas are currently classed as uncommon. Availability can change quickly between specialist stock lists, captive-produced batches and show weekends, so treat that label as a guide rather than a promise that a particular size or sex will always be easy to find.

Older hobby material may use the names Lampropelma violaceopes, Lampropelma violaceopedes. Keep older labels in your records if they came with the animal, but use Omothymus violaceopes when checking current husbandry or taxonomy.

Long-term care

Long-term care for Omothymus violaceopes is mostly about consistency. Keep the enclosure secure, maintain fresh water, feed sensibly, respect the spider's retreat and make changes only when the setup stops working for the animal.

Rehouse a Singapore Blue Tarantula when the existing enclosure has genuinely become cramped or awkward to maintain, not simply because the spider touches the walls. Prepare the new enclosure completely before moving the spider so the transfer itself can be kept short and controlled.