Keeping the Water Dragon
Like Duolingo, but for Keeping the Water Dragon. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
Free during early access · No credit card · iPhone & Android

Key ideas in Keeping the Water Dragon
- Axolotls are bottom-dwellers
- Adult axolotl size
- Importance of footprint
- Minimum tank volume
- Choosing the best tank shape
- Minimum volume requirement
- Axolotls are clumsy swimmers and prefer to walk
- Choosing the best tank shape based on axolotl behavior
- Vertical height does not contribute to an axolotl's usable territory
- Minimum volume requirement for a single adult axolotl
- Mapping tank dimensions to axolotl needs
- Axolotls require water between 60-68°F (15-20°C)
- Water temperature usually sits 1-2 degrees higher than air due to equipment heat
- Temperatures above 70°F (21°C) cause chronic stress and immune failure
- Chillers are the only consistent high-power cooling solution
- Aquarium fans provide moderate cooling through evaporation
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Keeping the Water Dragon the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
How large can you expect a full-grown adult axolotl to grow?
Get it right to open this lesson and 23 more in the app.
Where Keeping the Water Dragon takes you
Learn how to care for the world's most famous smiling salamander. From setting up a cool home to understanding their amazing healing powers, you'll become an axolotl expert.
- 1
Setting Up Your First Tank
- Choosing the Right Home
- Keeping the Water Cold
- The Importance of Clean Water
- Safe Sand and Decorations
- What to Feed Your New Friend
- 2
Understanding Axolotl Behavior
- Reading Body Language
- The Mystery of the Floating Axolotl
- Why They Don't Like Bright Lights
- 3
The Science of the Smile
- How They Regrow Limbs
- The Secret of Staying Young Forever
- Their Ancient Home in Mexico
- Saving Axolotls in the Wild
3 sections · 12 units · 24 levels. Built to play, not to enroll.
You pick the voice
Keeping the Water Dragon is taught in the The Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start Keeping the Water Dragon today.
Download Tomo, search Keeping the Water Dragon, and play your first lesson in under a minute.