Contact Us
Found a bug in a calculator? Have an idea for a new tool? Or just want to say hello? We'd love to hear from you.
Email us at [email protected] â we read every message and usually reply within a few days.
Before you write
- Calculator results look off? Tell us which calculator you used and the exact numbers you entered â that helps us reproduce the issue.
- New calculator ideas are always welcome. Tell us what you'd like to calculate and we'll consider adding it.
- Fish health emergencies: we're not veterinarians and email is slow â please contact a local aquatic vet or experienced fish store right away.