Thomas Merckx
Thomas Merckx, a young and dynamic agricultural engineer, infused the Exo Terra team with fresh energy when he joined in late 2011. As a product coordinator, he plays an instrumental role in ensuring that the company’s numerous exciting and innovative projects swiftly make the transition from concepts to tangible products. Yet, Thomas’s value extends far beyond his technical prowess. His background, marked by a profound passion for exotic animals, particularly reptiles and amphibians, enriches the team’s collective experience and drive.
The spark for this passion was kindled in Thomas’s family, which harbored an interest in exotic animals, mainly turtles and tortoises. Growing up in such an environment, it was only natural for him to develop a similar fascination. His childhood explorations included keeping various invertebrate and vertebrate exotic animals, laying the foundation for his future pursuits. A series of internships in zoos, animal rescue centers, and breeding facilities further honed his interest, leading him to specialize in reptiles and amphibians, with over 30 years of hands-on experience. Among his many interests, Thomas holds a particular fascination for frogs, especially poison dart frogs, which he considers the jewels of the animal kingdom.
Thomas’s expertise is not confined to captivity; his passion has taken him to some of the world’s most exotic locales. A significant chapter in his life unfolded in South America, where he lived and worked, diving into studying the region’s exquisite fauna. His focus on poison dart frogs led him to explore and research these stunning creatures in their native habitat, the rainforests, adding layers of understanding to their behavior, physiology, and ecological role.
During his time in South America, Thomas was presented with an extraordinary opportunity to contribute to the conservation of endangered species. He worked at the Galapagos Tortoise Breeding Centre on Isla Isabela, the largest island of the famed Galapagos archipelago. There, he played a vital part in preserving and breeding these iconic creatures, contributing to the global effort to protect our planet’s biological diversity.
Thomas’s journey, marked by a blend of professional acumen and a relentless passion for the exotic, aligns perfectly with the ethos and vision of Exo Terra. His joining the team has not only accelerated the company’s product development efforts but also brought a vibrant perspective that resonates with the organization’s technical and natural aspects.
As Exo Terra continues to push the boundaries of innovation, Thomas stands as a symbol of the synergy between human creativity and respect for the natural world. This synergy fuels the very core of Exo Terra’s mission.
“Thomas’s expertise is not confined to captivity; his passion has taken him to some of the world’s most exotic locales. A significant chapter in his life unfolded in South America, where he lived and worked, diving into studying the region’s exquisite fauna.”
Articles
Agalychnis callidryas
Red-Eyed Tree Frogs are native to Mexico, Belize, Guatemala, Honduras, Nicaragua, Costa Rica, Panama and even occur in some isolated populations in Colombia. They primarily prefer tropical rainforests and humid lowland forests but can sometimes be found in humid forests on premontane slopes up to 1250 m above sea level.
The Red-Eyed Tree Frog's common name refers directly to the beautiful, big red eyes that these frogs show at night. Red-Eyed Tree Frogs are sometimes referred to as Red-Eyed Leaf Frogs as well because of their arboreal lifestyle, sleeping on the back of the leaves in the trees and shrubs that they live in.
Red-Eyed Tree Frogs are stunning, long-lived and relatively “easy-to-care-for” amphibians. Their engaging personalities, their huge bright red eyes, bright green dorsal color with blue striped sides, and their bright orange webbed feet, make them one of the most stunning display animals for both the beginning reptile enthusiast as well as for the advanced hobbyist.
Red-Eyed Tree Frogs are a fairly social species and are best enjoyed when kept in small groups of 4 to 8 animals. The interaction between the animals in these small groups increases the viewing pleasure but also stimulates their mating behavior.
Red-Eyed Tree Frogs have been captive bred in the USA and Europe for more than 30 years. They are available in various local color variations and even an "albino type" morph with yellowish dorsal coloration and silver eyes called "lutino" is sometimes offered.
Bombina orientalis
Fire-Bellied Toads are endemic to Northeastern China, Korea, and the Khabarovsk and Primorye regions in Russia. Despite their common name Fire-Bellied “Toad”, these cute amphibians are actually frogs. As the name already indicates, their bellies are brightly colored in orange, yellow or red. These strikingly colored bellies are actually a warning sign (called aposematic coloration) to inform predators that they are distasteful and should not be eaten.
Fire-Bellied Toads are hardy, long-lived and “easy-to-care-for”. Their semi-aquatic lifestyle, their exposure of belly colors as they float at the water surface, and their somewhat clumsy “amusing” motions make them appealing display animals for both the beginning reptile enthusiast as well as for the advanced hobbyist.
Fire-Bellied Toads are a fairly social species and are best enjoyed when kept in small groups of 4 to 8 animals. The interaction between the animals in these small groups increases the viewing pleasure but also stimulates their natural- and mating behavior.
Ceratophrys ornata
Ornate Horned Frogs are hardy, long-lived, and “easy-to-care-for” amphibians. These large, terrestrial, burrowing frogs are native to South America and are characterized by more or less developed fleshy horns projection above the eyes.
The Ornate Horned Frog is only one of eight species of Horned Frogs:
Ornate Horned Frog (Ceratophrys ornata)
Cranwell’s Horned Frog (Ceratophrys cranwelli)
Suriname Horned Frog (Ceratophrys cornuta)
Brazilian Horned Frog (Ceratophrys aurita)
Caatinga Horned Frog (Ceratophrys joazeirensis)
Venezuelan Horned Frog (Ceratophrys calcarata)
Pacific Horned Frog (Ceratophrys stolzmanni)
Ecuadorian Horned Frog (Ceratophrys testudo)
The Ornate Horned Frog is one of the most commonly kept and bred Ceratophrys species. Horned Frogs are colorful and rather easy to breed which makes these fun frogs an ideal species for both the beginning amphibian enthusiast as well as for the advanced hobbyist. Captive-bred youngsters are readily available and come in a variety of colors & patterns. Next to the more common color morphs like Pattern-less Green, Strawberry, Sunburst, Albino or Chocolate, there are even hybrid morphs available called Fantasy Frogs.
Horned Frogs are commonly called Pac Man Frogs because their rounded shape and huge mouth resemble the animated character in the video game. Just like in the Pac Man game, the Horned Frogs devour everything that crosses their path.
Cruziohyla sylviae
Sylvia's Tree Frogs are native to Costa Rica, Honduras, Nicaragua and Panama. They prefer primary tropical rainforests located at low to mid elevations, up to 750m above sea level. The type locality of the Sylvia's Tree Frog is Guayacán in the province of Limón, Costa Rica.
The Sylvia's Tree Frog's common name refers to the 3-year-old granddaughter of the Herpetologist Andrew Gray, who described the species in 2018.
Sylvia's Tree Frogs are stunning, long-lived and relatively “easy-to-care-for” amphibians. Their engaging personalities, bright green dorsal color, their orange with black tiger striped flanks, and their bright orange webbed feet and inner thighs, make them one of the most stunning display animals for both the beginning reptile enthusiast as well as for the advanced hobbyist.
Sylvia's Tree Frogs live an arboreal lifestyle, sleeping on the back of the leaves in the trees and shrubs that they live in.
Sylvia's Tree Frogs are a fairly social species and are best enjoyed when kept in small groups of 4 to 8 animals. The interaction between the animals in these small groups increases the viewing pleasure but also stimulates their mating behavior.
Sylvia's Tree Frogs have been captive bred in the USA and Europe for several years now, but were mostly mistakenly named Cruziohyla calcarifer, until Andrew Gray described the species as Cruziohyla sylviae.
Dendrobates leucomelas
Yellow-banded poison dart frogs are endemic to the western Guiana region and the northeastern Amazon basin of South America: southeastern Venezuela and small, adjacent parts of Colombia, Guyana and northern Brazil. They are long-lived, intriguing and “easy-to-care-for”. Because of their typical color combination consisting of a yellow to orange base color with contrasting black splotches and bands, they are also sometimes referred to as "Bumblebee dart frogs".
Like other poison dart frogs, their bright colours are actually a warning sign (called aposematic coloration) to inform predators that they are poisonous and should not be eaten.
Yellow-banded poison dart frogs live a mainly terrestrial lifestyle: they are bottom dwellers that spend most of their time on and in between the leaf litter that covers the forest floor. They do, however, also frequently climb vines and trees.
Their amazing colours and the fact that they are easy to care for make them appealing display animals for both the beginning amphibian enthusiast as well as for the advanced hobbyist. Yellow-banded poison dart frogs are best kept as pairs or groups consisting of a majority of males: females might express dominant and aggressive behaviour towards other females when there is a conflict of interest in a specific male.
Dragon Grub, not your average reptile food!
Insects make up a big portion of the daily food intake of Bearded Dragons and other insect-eating reptiles. The Dragon Grub formula from Exo Terra is an enticing insect-based reptile food, specifically formulated for insectivorous reptiles and named with Bearded Dragons especially in mind. It features Black Soldier Fly larvae that are not only tasty to your reptiles; but are high in protein and very nutrient rich, with an ideal calcium to phosphorus ratio! This diet also contains natural plant and fruit ingredients enriched with vitamins, minerals and other trace nutrients to ensure a happy, healthy reptile!
Grammostola rosea
The docile temperament of the Chilean Rose Tarantula (Grammostola rosea), combined with its stunning visual appeal, and easy-to-care-for nature, makes it a favorite among those new to tarantula keeping.
Heating
Reptiles and amphibians are ectothermic or cold-blooded animals. Unlike endothermic animals such as mammals and birds, these animals cannot generate their own body heat internally. Instead, they rely on external heat sources to regulate their...
How to set up a bioactive terrarium
Setting up a bioactive terrarium can be a rewarding and sustainable way to keep certain types of reptiles, amphibians or invertebrates. The concept of a bioactive terrarium is to create a self-sustaining ecosystem where the animals live alongside various microorganisms that help maintain a natural balance.
Hyla cinerea (Dryophytes cinereus)
American Green Tree Frogs are native to the Southeastern United States roughly from Eastern Virginia to Florida in the East and from Central Texas all the way to the West. There's also records of introduced populations in Puerto Rico and even some invasive American Green Tree Frogs have been noticed in Hawaii.
They can be primarily found around lakes, ponds, swamps, streams and in wetlands. They prefer habitats with floating vegetation, reeds & grasses, and shrubs with branches overgrowing the riparian zone. American Green Tree Frogs easily adapt to various habitats and can be found in urban environments, like garden ponds in private gardens, hotel gardens and industrial complexes.
American Green Tree Frogs are hardy, long-lived and “easy-to-care-for” amphibians. Their engaging personalities, their bright yellow-green back and cream-white lateral stripe running from just under their big golden eyes all the way to their groin, make them appealing display animals for both the beginning reptile enthusiast as well as for the advanced hobbyist.
American Green Tree Frogs are a fairly social species and are best enjoyed when kept in small groups of 4 to 8 animals. The interaction between the animals in these small groups increases the viewing pleasure but also stimulates their mating behavior.
The American Green Tree Frog has been successfully bred in Europe and the USA for decades. American Green Tree Frogs are available as wild-caught specimen as well as captive-bred. We do recommend starting with captive-bred specimen, so you know their age and can rest assured that the youngsters are healthy.
Impaction, a secondary condition
Gastrointestinal impaction in reptiles and amphibians is considered a secondary condition: it typically arises as a consequence of other underlying issues or conditions. The primary causes that lead to gastrointestinal impaction are usually related to the animal's environment (for example temperature and humidity), diet, or overall health.
Nutrition
Understanding and providing the right nutrition is essential to ensure the longevity and vitality of your animals. To meet the nutritional needs of reptiles and amphibians, it's crucial to take the dietary requirements of each species, and the different stages of development into account.
On/Off, Dimming or Pulse Proportional?
Thermostats help us regulate the temperature inside the terrarium. There are plenty of choices available, and the wide range of possibilities is often confusing. Some Thermostats (like the Exo Terra 600W Thermostat) even allow you to choose between different options! To help you decide which one is the best in your situation, it is essential to know the characteristics of each type.
Oophaga pumilio
Strawberry poison dart frogs are endemic to Caribbean rainforests in Central America; from eastern central Nicaragua through Costa Rica to northwestern Panama.
The species is known for its extensive colour and pattern polymorphism, both within and among populations. The frog's look varies from a simple plain colour to a base colour covered with different shapes of dots, splotches and/or stripes, all of this with an endless variety of shades, such as blue, green, red, orange, yellow, black, brown and even white. Like other poison dart frogs, their bright colours are actually a warning sign to inform predators that they are poisonous and should not be eaten (aposematic coloration). Due to their colourful appearance and charismatic nature, they are often the subject of ecotourism related activities.
Strawberry poison dart frogs live a mainly terrestrial lifestyle: they are bottom dwellers that spend most of their time on and in between the leaf litter that covers the forest floor. They do, however, also frequently climb vines and trees.
Their amazing colours, charismatic nature and interesting breeding behaviour makes them appealing display animals. Strawberry poison dart frogs are best kept as pairs: females might express dominant and aggressive behaviour towards other females when there is a conflict of interest in a specific male.
Paludariums
The word paludarium originates from the Latin word “palus” which stands for swamp. Paludariums are semi-aquatic terrarium habitats that replicate a rainforest, swamp or stream and can harbor aquatic as well as terrestrial animal and plant species. A paludarium combines the best of two worlds: an extra deep bottom allows you to incorporate a substantial water part or aquarium section adjacent to the land or terrarium section. A fully equipped and functioning paludarium is basically a small, closed ecosystem.
Pandinus imperator
The Emperor Scorpion, scientifically known as Pandinus imperator, is one of the most recognizable arachnids in the world of terrarium invertebrates. Being one of the largest scorpion species, their impressive size and striking appearance have fascinated many arachnid enthusiasts.
Emperor Scorpions are indigenous to the tropical rainforests and savannas of West Africa. Their habitat includes countries such as Ghana, Togo, Benin, Nigeria, Cameroon, and the Ivory Coast. They are usually found in leaf litter and burrows, where they seek shelter from the bright sun and heat of the African day.
While Emperor Scorpions are typically solitary in the wild, some experienced keepers have managed to house them together. However, it's crucial to note that aggression and stress can arise in group settings, so it's recommended to keep them individually.
Phyllomedusa hypochondrialis (Pithecopus hypochondrialis)
Tiger-Legged Monkey Frogs are native to Colombia, Venezuela, Suriname, Guyana & French Guyana, Brazil, Bolivia and Paraguay. They prefer tropical & subtropical dry and moist forests but can also be found in seasonally flooded grasslands. The type locality of the Tiger-Legged Monkey Frog referenced in the original description is Suriname.
The Tiger-Legged Monkey Frog's common name refers directly to the striped tiger markings on the inside of the frog's thighs. These frogs really deserve their common name as being Monkey Tree Frogs. Rather than jumping like other frogs do, they prefer to use their long, skinny legs to slowly walk in the trees in a monkey-like fashion. They're also one of the only frogs with opposable thumbs, allowing them to use their monkey-like "hands" to get a firm grip on the thin branches, while walking through the vegetation that they live on.
Tiger-Legged Monkey Frogs are stunning, long-lived and “easy-to-care-for” amphibians. Their engaging personalities, their bright green dorsal color, their orange with black tiger striped inner thighs and partially orange with irregular black stripes and blotches on the flanks, make them one of the most stunning display animals for both the beginning reptile enthusiast as well as for the advanced hobbyist.
Tiger-Legged Monkey Frogs live an arboreal lifestyle, sleeping on the back of the leaves in the trees and shrubs that they live in.
Tiger-Legged Monkey Frogs are a fairly social species and are best enjoyed when kept in small groups of 4 to 8 animals. The interaction between the animals in these small groups increases the viewing pleasure but also stimulates their mating behavior.
Tiger-Legged Monkey Frogs have been captive bred in the USA and Europe for decades. The somewhat larger cousin of the Tiger-Legged Monkey Frog (Phyllomedusa hypochondrialis), the Super Tiger Leg Monkey Tree Frog (Phyllomedusa tomopterna) is also being captive bred, but to a much lesser extent.
Phyllomedusa sauvagii
Waxy Monkey Tree Frogs are native to the South American rainforests, humid montane forests, and dry forests in the Chacoan region of eastern Bolivia, northern Paraguay, Mato Grosso do Sul of central Brazil, and Northern Argentina. They primarily prefer moist and semi-moist forest habitats but can also cope with drier environments.
They are sometimes referred to as Chacoan Monkey Leaf Frogs as well, because of the Chaco Region they originate from, and because the females lay their eggs on leaves suspended over water, which they then fold to hide the eggs and protect them from drying out.
Waxy Monkey Tree Frogs are hardy, long-lived, docile and “easy-to-care-for” amphibians. Their engaging personalities, their waxy green skin, their adorable smile and big golden eyes make them appealing display animals for both the beginning reptile enthusiast as well as for the advanced hobbyist.
Waxy Monkey Tree Frogs are very tranquil and get accustomed to handling by their caretaker fairly easily. For the well-being of the frogs, however, we do not recommend excessive handling. Waxy Monkey Tree Frogs can be kept individually or in small groups of 2 - 8 animals. The interaction between the animals in these small groups increases the viewing pleasure but also stimulates their mating behavior.
Waxy Monkey Tree Frogs have been captive bred in the USA and Europe for more than 25 years.
Ranoidea caerulea (Litoria caerulea)
White’s Tree Frogs are native to Australia, Indonesia and Papua New Guinea. There are also some introduced populations in New Zealand and South Florida, USA. They primarily prefer moist and semi-moist forest habitats but can also cope with drier environments.
They are sometimes referred to as Dumpy Tree Frogs as well because of their somewhat chubby, sleepy appearance.
White's Tree Frogs are hardy, long-lived, docile and “easy-to-care-for” amphibians. Their engaging personalities, bluish-green color and milky white bellies, adorable smile and big golden eyes make them appealing display animals for both the beginning reptile enthusiast as well as for the advanced hobbyist.
White’s Tree Frogs are very tranquil and get accustomed to handling by their caretaker fairly easily. Dumpy Tree Frogs can be kept individually or in small groups of 2 – 8 animals. The interaction between the animals in these small groups increases the viewing pleasure but also stimulates their mating behavior.
White’s Tree Frogs have been captive bred in the USA and Europe for more than 30 years. They are available in various color morphs, green, blue, Snowflake (covered in white spots).
Role of the substrate
In a bioactive terrarium, the substrate plays a crucial role in supporting the overall health and functioning of the ecosystem. The term "substrate" refers to the material or layer on the floor of the terrarium where plants, microorganisms, and invertebrates reside.
Stone Desert
The Exo Terra Stone Desert mimics the natural soil found in arid regions, like deserts or savannahs. Most desert soils are not purely sand-based but rather a combination of sand, decomposed granite and clay resulting in interesting and sometimes colorful rock formations. Exo Terra’s Stone Desert allows you to create your own desert or savannah landscape, including cool-humid burrows as well as warmer elevated basking areas.
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