Avoid common terrarium mistakes like overwatering, poor drainage, and wrong plants. However, take a look at 10 terrarium care pitfalls that you want to avoid, including lighting and watering. · building a terrarium is a rewarding experience, but small mistakes can hinder your plants’ growth and longevity. By avoiding these common mistakes , you’ll enjoy a lush, thriving miniature ecosystem that doubles as a daily ritual of grounding and mindfulness. By avoiding these five common errors— overwatering, mixing incompatible plants, neglecting light, improper layering, and overcrowding —you’ll set your terrarium up for success. Terrariums thrive when given the right balance of water, light, and care. · avoiding these common pitfalls will help ensure your terrarium thrives and remains a beautiful, sustainable ecosystem. · terrariums are easy to make and maintain. Learn how to fix humidity, mold, and microclimate issues. In this article, we will explore some of the most frequent mistakes people make when making terrariums and offer practical tips on how to avoid them.