Free, practical, and private
Free Axolotl Care Tools and Printables
Check water results, calculate aquarium measurements, and download simple worksheets that make everyday axolotl care easier to track.
Tools support good judgment
Turn a measurement into a useful next step
These tools are meant to help you understand and record aquarium information. They cannot see the animal, test the water for you, or diagnose a health problem. Confirm surprising results with the current directions for your test kit.
- Use actual measurements, not guesses
- Record results so you can see trends
- Follow links for the full explanation
- Contact a veterinarian when the animal appears unwell
Interactive calculators
Use your own aquarium numbers
Each result includes context and a link to the complete care guide. Nothing you enter is submitted or stored.
Water quality
Axolotl Water Parameter Checker
Enter one complete set of test results. This checker compares them with the conservative ranges explained in the water-parameters guide.
Read the complete water-parameters guideRoutine maintenance
Water Change Calculator
Calculate how much water to remove based on the aquarium’s actual water volume and your planned partial-change percentage.
Actual water volume is usually lower than the tank’s label because substrate, decor, and the unfilled top space displace water.
Aquarium planning
Rectangular Tank Volume Calculator
Estimate the gross volume of a rectangular aquarium from its inside measurements. The real operating volume will be lower after setup.
Measure the inside length, inside width, and actual filled water height. Curved, bow-front, and irregular aquariums need a different calculation.
Printer-friendly resources
Download the care sheets you will actually use
Every PDF is one page, designed for US Letter paper, and kept simple enough to write on by hand.
Tank Setup Shopping Checklist
Plan the aquarium, filtration, cooling, habitat, and routine-care supplies before your axolotl comes home.
Fishless Cycling Log
Track ammonia, nitrite, nitrate, pH, temperature, dosing, and the final 24-hour readiness test.
Feeding and Weight Log
Record meals, appetite, body weight, waste, and observations so gradual changes are easier to notice.
Tank Maintenance Checklist
Follow daily, weekly, and monthly care tasks, record water results, and avoid cleaning mistakes.
Axolotl Ownership Budget Worksheet
Plan startup expenses, monthly costs, electricity, veterinary savings, and local price checks before purchasing an axolotl.
A simple routine
Measure, record, then respond
The calculators are most useful when they support a consistent routine. Keep the printables near the aquarium or save a clean digital copy before writing on them.
- 1Measure carefully
Use the aquarium’s actual measurements and follow the exact directions for your current test kit.
- 2Record the result
One isolated number is useful, but a dated trend makes gradual changes much easier to recognize.
- 3Use the full guide
Follow the related article before making a major change to water chemistry, filtration, feeding, or the habitat.
A calculator cannot examine an axolotl
If your axolotl is weak, injured, unable to remain upright, breathing abnormally, swelling, bleeding, or changing rapidly, use the health warning signs guide and contact an amphibian veterinarian. Do not delay care because one aquarium number looks normal.