Tools

Aquarium AI

Fill in what you know about your tank and leave the rest blank. The page turns your answers into a Tank Profile for Claude, ChatGPT or Gemini, so the AI starts from your tank's details instead of asking for them. Free, no sign-up.

My prompt tells the AI how to answer, and it is the same for everyone: read the prompt.

$0 · From the Aquarium Planner

If you build your tank in the Aquarium Planner first, its Aquarium AI button fills this form for you.

Planner results

$1 · Your tank

For a tank you are still planning, pick Not set up yet.

Tank volume

Length, width, height

How long has it been running?

Filtration

Substrate

Substrate depth

What is in the substrate, layer by layer

Lighting

Light hours a day

Direct sunlight?

Temperature

Heater?

$2 · Your water

Water source

How hard is your water?

Test readings

Water changes

$3 · Plants and animals

Include floating plants and fast growers.

Plants

Animals

Anything breeding, dying or thriving?

$4 · What is happening

Be specific: where the algae grows, which animal, since when.

What do you see right now?

What puzzles you, or what do you want to understand?

What have you already tried?

$5 · Your goal

How much science do you want?

Units for answers

Your goal

Your Tank Profile

Aquarium AI is two pieces of text: the prompt and your Tank Profile. Use them one of two ways.

Set it up once

In a Claude or ChatGPT project, or a Gemini Gem. Every chat you start inside it has both.

Make a new project in Claude or ChatGPT, or a new Gem in Gemini.
Paste the prompt into its instructions.
Add your Tank Profile as a file. Gemini calls this Knowledge.
Start a chat inside it and ask. When the tank changes, make a new profile here and replace the file.

In any chat

Without a project, one file holds the prompt and your profile.

Open a new chat with Claude, ChatGPT or Gemini, attach the file or paste its text, and send.

Send me your Tank Profile (optional)

I read the profiles people send to test Aquarium AI and the Planner, and I email you when they change. I don't share your email. Your downloads work either way.