The logbook stays free.
Run the business for $19 a month.
TankBud stays free for hobbyists. TankBud Pro adds client tanks and plans, service reports, invoices your clients pay by Venmo, PayPal, Cash App or Zelle, and a business profile. Solo costs less than half of one service visit, and both tiers start with a 30-day trial, no card.
From $19 a month · 30-day trial · no card
Driftline Aquatics has 8 invoices outstanding, 2 overdue, 6 due in the next 14 days and 4 paid in the last 30 days.
The captures on this page show Driftline Aquatics, an example business.
Pricing
Free
free for hobbyists
The whole hobbyist logbook, for every tank you keep.
- Tanks, water tests and reminders
- Livestock, plants, photos and logs
- Planner, budgets and share links
Free forever · no card
Solo
or $190 a year
For one person running client tanks.
- 1 member
- Client tanks and plans
- Service reports
- Invoices paid by Venmo, PayPal, Cash App or Zelle, plus optional online payments
- Recurring invoices
- Accounting exports
- Business profile and branding
30-day trial · no card
Team
or $490 a year
For a store or crew that shares the work.
- 3 members included · extra seats $15/month
- Everything in Solo
- Members and roles: Owner, Editor and Viewer
30-day trial · no card
Solo and Team start the same 30-day trial. You pick the plan when you subscribe.
One visit, start to finish.
The work around a client's tank stays on one record, from the visit to the payment.
01 · The client's record
02 · The write-up, on site
03 · The report the client opens
04 · The invoice the client opens
Built for aquarium businesses
Service and maintenance
A maintenance business keeps each client's tanks, visits, reports and invoices on one record.
Stores
A store prints care labels with QR codes for its tanks, and a scan shows the store on the care guide. It tracks display and stock tanks with staff reminders, and puts free species cards on its site with the WordPress plugin or HTML embed.
Installers and aquascapers
An installer plans the build, then shares the finished tank and its history with the client.
Breeders and sellers
A breeder keeps tanks, livestock records and recurring care on one logbook, and invoices buyers from it.
The tank record becomes the business record.
TankBud Pro keeps the work around a client tank connected to the tank itself. Who it belongs to, what you did on the last visit, what you charged and what comes next all stay in one place. So does the history behind all of it.
Your clients don't need another app, and you don't need to change how you get paid. Send the report, send the invoice, and keep the next visit on schedule.
Ask Claude or ChatGPT about your client tanks.
The assistant works from the same record once TankBud is connected to Claude or ChatGPT.
- “Start a service report for the Chen living room reef.”
- “Which invoices are overdue?”
- “Add Lakeside Pediatrics as a client.”
- “What is due on my client tanks this week?”
It reads invoices and never drafts, sends or changes one.
It sends a service report only after you confirm.
In Claude, find TankBud under Customize, Connectors.
Compare the tiers
| Feature | Free | Solo | Team |
|---|---|---|---|
| Tanks, water tests and reminders | Included | Included | Included |
| Livestock, plants, photos and logs | Included | Included | Included |
| Planner, budgets and share links | Included | Included | Included |
| Client tanks and plans | Not included | Included | Included |
| Service reports | Not included | Included | Included |
| Invoices paid by Venmo, PayPal, Cash App or Zelle | Not included | Included | Included |
| Recurring invoices | Not included | Included | Included |
| Online card and bank payments | Not included | Optional | Optional |
| Accounting exports | Not included | Included | Included |
| Business profile and branding | Not included | Included | Included |
| Store labels with your own names, prices and scan callout | Not included | Included | Included |
| Members | Not included | 1 | 3 included · $15/seat |
Online payments are optional. When enabled: card 3.4% + 30¢ · bank payment 1%, capped at $10.
Common questions
Plans and billing
The trial runs 30 days and doesn't ask for a card. When it ends, choose Solo or Team to keep the business features, or drop back to the free logbook. Your tanks and their history stay where they are.
Working with clients
Nothing. Reports and invoices open as web pages from a link, with no account and no app.
Bring your clients in, and the visits and invoices follow.
Add your clients and their tanks.
Give each client a record. Tanks you already keep in TankBud move into the workspace, and new ones go straight under the client.
Log each visit and send the report.
Write the visit up on your phone while you're there. Your client opens the report from a link, with no account.
Add your payment details once.
Put your Venmo, PayPal, Cash App or Zelle details under Settings, Organization, Payment handles. Every invoice after that carries them, with a QR code for Venmo, PayPal and Cash App.
Start with the trial.
Keep the logbook either way.
30-day trial · no card
