How to Make DIY Terrarium Soil Mix & Putty | Step-by-Step Closed Terrarium Guide

Learn how to make the ultimate DIY terrarium soil mix and terrarium putty in this step-by-step closed terrarium guide. This tutorial focuses on building a balanced substrate system designed for healthy plant growth, moisture control, and long-term ecosystem stability. In this DIY terrarium guide, I show how to prepare a natural substrate mix and use it to build a complete closed terrarium setup. This method helps manage common issues such as excess moisture buildup and mold, while supporting healthy root development in indoor plants with proper care and maintenance. A separate DIY terrarium putty recipe is also shown in this video, designed for shaping slopes, creating vertical moss walls, and supporting planting in tight or uneven spaces. ⏰ Timestamps: 0:00 - Step 1: Making the Substrate Mix 0:58 - Nano Terrarium Build with DIY Substrate 2:13 - Step 2: Creating the Terrarium Putty 2:42 - Mini Terrarium Setup in a Cup ✅ Important Notes & Best Practices: Moisture Control: Keep the soil lightly moist (similar to a wrung-out sponge) to avoid root rot and excess humidity. Lighting: Place your terrarium under bright, indirect light and avoid direct sunlight to prevent overheating. Airflow: Vent the container occasionally if condensation becomes heavy and reduces visibility. Plant Selection: Use plant species that are suitable for closed, high-humidity terrarium environments. Layering System: Use LECA, activated carbon, and a mesh barrier to support drainage and long-term stability. 📘 Educational Notice: This video is for educational and hobby purposes only. Results may vary depending on local climate, plant species, and maintenance conditions. 🔗 Useful Materials: Coarse Sand - https://amzn.to/3H38zZx Sphagnum Moss - https://amzn.to/4fdNzvV Nylon Mesh - https://amzn.to/4oaV4rs Red soil - https://amzn.to/474qZDI Activated Carbon - https://amzn.to/4miSuOh (As an Amazon Associate, I earn from qualifying purchases) 👋 About MadeByKM: DIY terrarium and indoor gardening projects designed to help hobbyists build and maintain natural ecosystems at home. 👍 Support the Channel: If you found this helpful, please Like and Comment! 🔔 Subscribe for more DIY:    / @madebykm   👑 Join the Community:    / @madebykm   🌐 Facebook Page:   / madebykm1   #DIYTerrarium #TerrariumSoil #MadeByKM