
Build the Perfect Paludarium: A Complete Guide for Dart Frogs & Fish
Learn how to create a stunning paludarium for dart frogs and fish! This step-by-step guide covers setup, the best plants, filtration, lighting, and essential Amazon product recommendations.
A Little Slice of Nature at Home
Imagine bringing a miniature rainforest right into your living room—a lush, self-sustaining ecosystem where land and water meet in perfect harmony. That’s exactly what a paludarium offers!
If you love aquariums, terrariums, or the idea of keeping dart frogs and fish in a naturalistic environment, you’re in for an exciting journey. In this guide, I’ll walk you through everything you need to know to build, set up, and maintain your own paludarium.
And the best part? You can grab everything you need right from Amazon—I’ll link to the best products along the way to save you time.
What Is a Paludarium?
A paludarium is a hybrid enclosure that combines both land and water, making it the perfect environment for dart frogs, fish, aquatic plants, and terrestrial greenery.

Typically, a paludarium consists of:
✅ 70% land – a humid, jungle-like terrain for frogs and plants
✅ 30% water – a small pond or stream for fish and aquatic life
The trick to a great paludarium is seamlessly blending both environments. Ready to build yours? Let’s get started!
Step 1: Choosing the Right Tank
Your paludarium’s foundation starts with the right enclosure. Here’s what to consider:
✔️ Size: A 20-gallon tank is the minimum, but bigger is better for stability. 👉 Check out this highly-rated 20-gallon tank on Amazon
✔️ Shape: Tall tanks work best for dart frogs since they love to climb. A vertical terrarium is ideal. 👉 Grab a vertical tank here
✔️ Front-Opening Access: Makes maintenance much easier! 👉 Here’s a great front-opening tank
✔️ Ventilation: Proper airflow prevents mold and maintains humidity. Many Exo Terra tanks have built-in ventilation. 👉 Check out Exo Terra tanks here
Step 2: Creating the Land-Water Divide
One of the most challenging parts of a paludarium is keeping land dry while maintaining a healthy aquatic section. Here’s how to do it:
🔹 Drainage Layer – Add LECA (expanded clay balls) or aquarium gravel to prevent water from soaking the soil. 👉 Buy LECA here
🔹 Substrate Barrier – A mesh screen prevents the soil from clogging the drainage. 👉 Check this substrate barrier mesh
🔹 Natural Slope – Arrange rocks, driftwood, or foam backgrounds to create a gradual transition. 👉 Get natural-looking driftwood here
Step 3: Choosing the Best Substrate
A healthy substrate does more than look nice—it supports beneficial bacteria and tiny cleanup critters like springtails and isopods.
🔸 Perfect Bioactive Substrate Recipe:
✔ 40% organic potting soil (chemical-free) on Amazon: Buy Now
✔ 30% coconut fiber (👉 Buy coconut fiber substrate)
✔ 20% sphagnum moss (👉 Get sphagnum moss here)
✔ 10% orchid bark (👉 Check out orchid bark)
🔹 Pro Tip: Top it off with leaf litter to mimic the forest floor and keep humidity stable. 👉 Buy leaf litter for dart frogs
Step 4: The Aquatic Section—Filtration & Water Care
Keeping water crystal clear is crucial, as paludariums hold less water than regular aquariums, making them prone to waste buildup.
🔹 Best Filter Options:
✔ Small Canister Filter (👉 Top-rated canister filter on Amazon)
✔ Hang-On-Back Filter (👉 Best HOB filter here)
🔹 Water Changes: 20% per week keeps ammonia and nitrites in check.
🔹 Water Testing Kit: Monitor pH, ammonia, and nitrates regularly. 👉 Get an easy-to-use water test kit
Step 5: Choosing Fish for Your Paludarium
Not all fish are frog-friendly! Stick to small, peaceful species that thrive in similar conditions.
🐟 Best Fish for Paludariums:
✅ Endler’s Livebearers
👉 Buy colorful, hardy fish on Amazon
Step 6: Best Plants for a Thriving Paludarium
Aquatic Plants:
✔ Anubias (👉 Buy here): hardy, slow-growing, attaches to driftwood
✔ Java Fern (👉 Great deal on Amazon): low-maintenance, lush green leaves
✔ Cryptocoryne (👉 Variety pack available): Adds color and texture
Terrestrial Plants:
✔ Bromeliads: Frogs use them for laying eggs (👉 Find bromeliads here)
✔ Mini Orchids: Beautiful and thrive in humidity (👉 Check mini orchids)
✔ Moss & Ferns: Help retain moisture (👉 Buy high-quality moss)
Planting Tip: Attach orchids & air plants to driftwood using aquarium-safe glue. 👉 Buy glue for plants & wood
Step 7: Lighting & Humidity—Keeping It Perfect
🔆 Lighting:
✔ Low-output UVB bulbs (2-5%)—essential for dart frogs (👉 Get a UVB light here)
✔ LED Plant Lights: Boost plant growth (👉 Best LED plant light)
💦 Humidity:
✔ Keep levels at 70-80%
✔ Automated misting system (👉 Best misting system on Amazon)
✔ Monitor humidity with a digital hygrometer (👉 Check it out)
Step 8: Feeding Your Dart Frogs & Fish
🐸 Dart Frog Diet:
✔ Live fruit flies (👉 Order fruit flies here)
✔ Calcium-dusted insects (👉 Best calcium supplement)
🐟 Fish Diet:
✔ High-quality flakes & pellets (👉 Check out top fish food)
✔ Occasional frozen treats like bloodworms
Final Thoughts: Build Your Dream Paludarium Today!
Creating a paludarium is a fun and rewarding challenge, giving you a stunning mini-ecosystem right at home. With the right setup, your dart frogs and fish will thrive for years!
🚀 Ready to start? Click the links above to grab your supplies on Amazon and build your dream paludarium today! 🚀
👉 Shop paludarium essentials now