"There will be some bloodshed." Think tortoise breeding is all slow-motion romance? Think again. Forsten’s Tortoises are vocal, violent, and incredibly picky about who they date."Wendy Montroy sits down with breeder Stephen Sifuentes to pull back the curtain on one of the most aggressive yet rewarding species in the hobby. From the high-stakes "supervised dating" required to keep pairs from maiming each other to the surprising discovery of year-round egg-laying, Stephen shares his data-driven approach to mastering this challenging species.

You’ll hear about the comically loud breeding rituals, the "spicy" attitude of hatchlings fresh out of the egg, and how Stephen is using a rigorous data tracking system to build a genetic roadmap for the future of the species. Whether you’re a seasoned keeper or just curious about the wilder side of chelonians, this episode is a deep dive into the dedication required to establish assurance colonies for these golden gems.

Key Discussion Points

The Compatibility Crisis: Why simply having a male and female isn't enough; Forsten’s Tortoises require specific "compatible pairs" to avoid fatal aggression.

Supervised Breeding: The necessity of watching every interaction to prevent injury - including the risk of males losing their goods to an unimpressed female.

Atypical Nesting: Insights into their year-round laying cycle and why their biological clocks often mirror the opposite hemisphere.

Incubation Experiments: Exploring the wide range of incubation times (95 to 180 days) and the ongoing search for definitive Temperature-Dependent Sex Determination (TSD) parameters.

Hatchling Care: Managing "spicy" newborns that come out of the egg with an attitude, and the importance of using mushrooms as a high-value first meal.

Conservation & The CPP: The role of the Chelonian Propagation Program and the development of private studbooks to ensure genetic diversity.

Advice for New Keepers: Why beginners should always start with captive-bred animals and the critical questions to ask when transitioning a tortoise to a new home.

Connect with Our Guest

Stephen Sifuentes: Find him on ⁠Facebook⁠ or reach out via the ⁠TTPG Group Discussion⁠.

Visit ⁠turtletea.org⁠ for more resources and past episodes.

JOIN THE COMMUNITY:

TTPG Website: https://www.ttpg.org/

TTPG Facebook Group: https://www.facebook.com/groups/TTPGGroup

They are violent, they are beautiful, and they will absolutely bite your toes if you’re not wearing shoes. In this episode, we dive into the intense world of Forsten’s tortoises.

In this episode of Turtle Tea with TTPG, we go deep into the world of the Forsten’s Tortoise (Indotestudo forstenii). Host Wendy Montroy sits down with species specialist Stephen Sifuentes to discuss the highs, lows, and intense aggression of these Sulawesi natives. If you've ever considered specializing in a single species, this episode is a masterclass in commitment, habitat management, and the realities of working with a "feisty" tortoise.

In This Episode, We Cover:

• The Power of Specialization: How Stephen transitioned from a "mishmash" collection to a laser-focused Indotestudo program after a life-changing talk at the TTPG conference.

• The "Little Man Syndrome": Why these tortoises are known for their extreme aggression and why you should never enter their pens without sturdy shoes.

• Creating a Tropical Oasis: Stephen shares his ingenious setup, including 4x4 hydroponic reservoirs and a custom-piped DIY fogging system that services multiple cages at once.

• The Forsten’s Diet: Why mushrooms are a dietary staple and how tropical fruits like papaya are essential for maintaining health in these beautiful but misunderstood tortoises.

• The Challenges of Wild-Caught: An honest look at the difficulties of importing and rehabilitating wild-caught individuals, and why bloodline diversity is critical for long-term conservation.

• Breeding Realities: Expert advice on pairing, managing sexual maturity, and the absolute necessity of keeping these territorial animals separate to prevent fighting.

• IUCN Status: Indotestudo forstenii is listed as Critically Endangered due to deforestation, human encroachment, and the pet trade on Sulawesi Island.

• Habitat Tip: Replicate their native Indonesian climate - they need high humidity (80%+) .
• Housing Specs: Stephen recommends 1500g-2000g for breeding maturity. While babies can sometimes be raised in groups, adults require individual housing due to their highly territorial nature.

Connect with Our Guest

Stephen Sifuentes: Find him on Facebook or reach out via the TTPG Group Discussion.

Don’t Miss the Next Episode!

We are diving into Forsten’s breeding and hatchling care in our next installment of Turtle Tea. Make sure you are subscribed so you don’t miss the follow-up to this conversation!

Visit turtletea.org for more resources and past episodes.

Join us for International Turtle and Tortoise Week™ (ITTW) , April 20-24 2026! Host Wendy Montroy welcomes TTPG founder Russ Gurley and Ashley Rademacher, the Director of Animal Care and Education at Zoo Med Labs, Inc. ITTW provides FREE educational packets to thousands of students across fifteen countries. Educators of all types, homeschoolers, teachers, 4H groups, or after school clubs can register to receive digital downloads or physical materials like lesson plans and stickers.

The group discusses the evolution of the program from its roots and association with Earth Day, to its current status as a global outreach effort. They talk about ITTW's origins in inspiring and engaging young people and go over the packet contents, with a specific curriculum designed for students in second through sixth grade, although older kids have enjoyed it as well. They emphasize the importance of providing printed materials for schools with limited resources, especially with today's rising printing and shipping costs.

Want to get involved?

Register for ITTW: https://zoomed.com/international-turtle-and-tortoise-week-2026/

Buy Turtle Lovers Guidebook: https://zoomed.com/shop/posters-books/turtle-lovers-guidebook/

Not a TTPG member yet? ⁠⁠⁠Join us⁠⁠⁠! The ⁠⁠⁠Turtle and Tortoise Preservation Group⁠⁠⁠ is full of the kindest, most knowledgable and FUN turtle people on the planet!

For more information on turtle conservation and husbandry, visit ⁠⁠Turtletea.org⁠⁠ or join the ⁠⁠Turtle and Tortoise Preservation Group (TTPG) ⁠⁠community.