Aquarium service: a guide for pros

What customers ask, how to win the job, and what to put on your profile.

Offering aquarium service

Aquarium owners hire technicians for clean tanks and stable water that keeps fish healthy. Your water testing, your filter care and your service notes are what win regular maintenance clients.

What customers ask

  • What do you test for, and what do the results mean?
  • Will you clean the filter without harming the bacteria?
  • Can you check my heater and pump?
  • How often should my tank be serviced?
  • What do you do if my fish look sick?

How to win the job

  • On the first call, ask for the tank size, the fish and plants, the equipment and the service history.
  • Test the water on the first visit and share the results with the owner in writing.
  • Explain the water change and filter steps in plain words, and say why you use tank water for rinsing.
  • Check the heater, pump and lights, and report any problem before you leave.
  • Put the tank size, the tests, the cleaning steps and any equipment check in the quote.
  • Send a service note after each visit with the readings and the plan for the next visit.

What to put on your profile

  • Photos of before and after cleanings on several tank types, shown with consent
  • A list of your services, such as water testing, filter care, deep cleans and equipment checks
  • Your training and the tank types you service, including saltwater if you do
  • Your water testing process and how you record results
  • Your business registration and any local permit that applies to your business

Follow-up that helps the customer

  • Offer a regular monthly visit with a written test report
  • Suggest a water test kit for the owner to use between visits
  • Offer a set-up or re-scape visit for a tank that needs a new plan

Licenses and permits

A license is often not required for aquarium service, but rules differ by state and city. Keep your business registration, any local business license your city requires, and your training on your profile, and list the tank types you are trained to service.

Questions

Do I need a license to clean aquariums for pay?

A license is often not required for aquarium service, but rules differ by state and city. Check your local city or county rules for business licensing and keep your training documents current.

What do I do if a fish dies during service?

Remove the fish, test the water, and tell the owner right away. Advise the owner to talk with a veterinarian who treats fish if they want to know the cause.

Should I add treatments to a tank?

Only when the owner asks, and only with a label and a clear reason. Explain what the treatment does and the risk to the fish and plants.

About this guide

This national guide is written and checked by infinibell. Rules and conditions differ by place, so local pros are credited on guides for the cities they serve, not on national ones.

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