Mochi (axolotl) water parameters — sharing my exact setup for anyone considering one
Getting a lot of questions after mentioning Mochi here, so sharing the basics for anyone considering an axolotl. Water temp: kept strictly between 60-64°F, anything warmer than 68°F for extended periods is genuinely dangerous for them, not just suboptimal. Ammonia/nitrite: zero, always, tested twice weekly. Substrate: fine sand only, never gravel (impaction risk if ingested). Tank: minimum 20 gallons for one adult, more surface area matters more than depth since they're not strong swimmers. Diet: primarily earthworms and pellets specifically formulated for axolotls, not generic fish food. One year in, zero health issues, and I credit almost all of it to getting the water chemistry right from week one rather than troubleshooting problems after they appeared.
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A simple aquarium chiller paired with a smart plug and a wifi temp sensor would let you automate and log the temperature range you're describing without manual checking every day. Might be worth it for the consistency, given how unforgiving the temp window is for this species.
Never knew much about axolotls before this, but I appreciate you laying it out so plainly. Sounds like the opposite problem from a dog — less about behavior, more about getting the environment exactly right from day one. Good information for anyone considering something a little different
This is a really clear, well-organized care breakdown — appreciate the structure. The temperature sensitivity point is the one most new owners underestimate; a lot of aquarium heating advice for tropical fish is the opposite of what an axolotl needs, which causes confusion for people coming from regular fishkeeping into amphibians.
Good information, and the substrate point about impaction risk is one of the most common preventable health issues in axolotls specifically, so it's worth highlighting as strongly as you did. The proactive water-chemistry-first approach you're describing is exactly the right framework for an exotic pet with a narrow tolerance range like this.