The method

Your fish didn't die because you're bad at this. The tank wasn't finished.

Forty-four steps, from choosing the size to the first fortnight with fish in. What to buy and what not to. How to cycle a tank with nothing living in it. And the exact test that tells you it's ready, which is not a date on a calendar.

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Planting, by hand

Free, and it decides everything

Your tap water already has four numbers.

Hardness, pH, nitrate and which disinfectant your supplier uses are published free, and they decide which fish are easy for you. Almost nobody looks.

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Sound familiar?

Clear water, warm heater, humming filter — and everything died anyway?

Here's the thing nobody says out loud. Your tank went wrong before you bought the fish.

A filter is a house for bacteria, and yours was empty. The bacteria that process fish waste take three to six weeks to grow, they live in the filter media rather than the water, and there is no way to see them.

So the tank looked finished on day three. It wasn't, and nothing in the shop would have told you, because there's nothing to sell you about it.

What you get out of it

One process, done in order.

Get the first six weeks right and the next six years are a half hour on Sunday.

How to size a tank by the fish rather than by the shelf it has to fit

The four numbers your tap water already has, for free, before you buy anything

What the nitrogen cycle actually is, and why it can't be bought or rushed

How to cycle a tank with no fish in it, and what to feed it instead

The 24-hour test that says the tank is ready — and what 'ready' doesn't mean

Why rinsing filter media under the tap undoes three weeks in about ten seconds

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When it is a vet, not a book: If fish are dying, gasping at the surface, hanging at the top or lying on the bottom, if they have visible wounds, growths, cloudy eyes or a bloated body, if they stopped eating, or if several went wrong at once: test the water today, stop feeding, add nothing to the tank, and take the numbers and a clear photograph to a veterinarian who treats fish or a specialist aquatic shop. There is no medication in this collection and there never will be.

The sentence the whole book rests on

The bacteria live in the filter, not the water.

Which is why a huge water change can't hurt your cycle, and why rinsing a sponge under the tap undoes three weeks in about ten seconds.

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Inside the file

Forty-four steps, seven chapters, 57 pages

A page from the The Cycled Tank PDF — An actual page from the PDF, at full size

Before you spend a cent — size by the fish, your tap water, the floor under the stand, and the budget in the right order
The hardware — tank, filter, heater, light, substrate, and the bucket that must never see soap again
Setup day — levelling, rinsing, hardscape before water, filling without a crater, and dechlorinating
The cycle — ammonia, nitrite, nitrate, stalls, shortcuts that work, and the test that says you're finished
The first fish — one group not one of everything, acclimation, and the first fortnight of daily testing
The week that repeats — the 25%, the filter media rule, feeding honestly, and the log
When it goes wrong — cloudy water, mini-cycles, gasping at the surface, and where this book stops

What you get

A 57-page PDF, 6 × 9 inches

The whole setup in forty-four numbered steps, one page each, with the timings, the quantities and the mistakes written down.

Steps44
Chapters7
Pages57
Format6 × 9 in

One page per step: what you need, how it goes, the numbers, what goes wrong
A drawn plate of the nitrogen cycle, and one of the whole setup
Five pages of plain warnings at the front, including electricity and the weight of a filled tank
Prints on ordinary paper, reads fine on a phone

Forty-four steps, one page each

What you need, how it goes, what goes wrong.

No wall of text. Every step is a single page with the timings and the quantities printed on it, so you can follow it with wet hands.

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The whole setup, in order, in forty-four steps you can actually follow.

A 57-page PDF, 6 × 9 inches

The whole setup in forty-four numbered steps, one page each, with the timings, the quantities and the mistakes written down.

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60days

60-day money-back guarantee

If the ebook is not what you expected, write within 60 days and you get your money back in full. You keep the file. No form, nothing to return, and you do not have to explain why.

Important purchase information

Delivery: A digital ebook in PDF form. Right after your purchase you receive an email with a secure download link, and the same link on the page you land on. Nothing is shipped.
What it is: Educational material about keeping a freshwater aquarium. Not veterinary advice, and no promise that any fish will live.
Payment: One-time payment of $10.00. No subscription and nothing further to buy.
Refund: 60-day money-back guarantee, in full, with the file kept.

Ten dollars, once

No subscription. No upsell. No list.

One payment, instant download, and 60 days to get your money back if it isn't for you. You keep the file either way.

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Questions people actually ask

Can I add fish sooner than that?

You can. The book tells you plainly what happens if you do, and why fish-in cycling is hard on the animals. The honest answer is that the biology takes the time it takes and no product reliably skips it.

Will this stop my fish dying?

It makes no promise like that and says so on page one. The cycle is chemistry you can learn from a page. An animal is an animal, and anyone promising you an outcome in a living thing is selling you something.

My fish are sick right now. Is this the right book?

No. Test the water today, stop feeding, add nothing to the tank, and take the numbers and a clear photo to a vet who treats fish or a specialist shop. There are no medications or doses anywhere in this collection, deliberately.

Do I need expensive equipment?

Two things are worth paying for — the filter and a liquid test kit — and the book says exactly why. It also lists what not to buy in month one, which is most of it.

What format is it?

A PDF, 6 × 9 inches. Read it on your phone or print it.

What if I hate it?

Email within 60 days and you get your money back in full. You keep the file.

One payment, and it is yours

Stop guessing at the glass

Forty-four steps, timed, from the empty tank to the first fortnight.

Yes — show me the whole thing — only $10.00One-time payment · 60-day money-back guarantee

This is educational material about keeping a freshwater aquarium. It is not veterinary advice, it does not diagnose anything, and it does not treat anything. There are no medications, doses or treatment protocols anywhere in this collection. Sick or dying fish mean a water test today and a veterinarian who treats fish, or a specialist aquatic shop, in person. No book can promise you that a living animal will survive.