Aquarium Water Test Record
See water parameters as a trend rather than a single reading, which is the only way to spot a cycle crashing before the stock does.
XP-06 1 page
Exotic and small pets · XP-07
Aquarium Maintenance Schedule
A free printable aquarium cleaning checklist — water changes, substrate vacuuming, filter rinsing and media replacement, with equipment checks.
Download Free · no sign-up
One page. Choose your paper size — both versions are laid out identically, so neither one gets shrunk to fit.
Print it and write on it
Fill it in type and save
The fillable versions have real form fields — open them in any PDF reader, type into them and save. Printing help.
What this sheet is for
Keep the maintenance round on a record, including the filter media detail that decides whether a tank stays stable.
Who it is for
Fishkeepers of any experience, and anyone sharing a tank's care.
How to use it
- Record the volume changed, not just that you changed water.
- Note that the new water was temperature-matched and dechlorinated.
- Never replace all filter media at once, and record what you did replace.
- Run the equipment checks monthly.
What is on the sheet
The layout is fixed at a size that fits both A4 and US Letter, so the A4 and Letter files are visually identical and print at full size on either. Rows are set at a height that an adult can actually write a date and a few words into with a pen — most printable tables are built in a word processor and never tested with one.
Questions
How much water should I change, and how often?
No figure is printed. It depends on stocking, filtration, planting and what you keep. Your own nitrate readings on the water test sheet are the best guide you will get.
Why rinse filter media in tank water?
Because tap water in most places contains chlorine or chloramine, which kills the bacteria the filter depends on. Rinsing media under the tap is one of the commonest ways a cycled tank is crashed by somebody trying to be helpful.
Related sheets
Fish Stock and Livestock Record
Keep a record of what went into the tank and when, with the adult size that should have been checked before buying.
XP-08 1 page
Habitat Cleaning and Maintenance Rota
Run the cleaning and equipment round across several enclosures without losing track of which was done when.
XP-24 1 page
One new sheet, most weeks
We are building this library out steadily. Leave an address and we will send the new sheets as they are finished — nothing else, and no more than one email a week.
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