Affiliate Disclosure
Last updated: August 17, 2026
Aquarium Tech Data earns retailer commission on qualifying purchases made through links on this site. Here is exactly what that means, what it does not change about the pages, and how to use the site without it.
1. The disclosure
Some links here are affiliate links. If you follow one and buy something, we may receive a commission from the retailer. You pay nothing extra — the commission comes out of the retailer’s margin, and the price is the same as it would be arriving from anywhere else.
Aquarium Tech Data is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate we earn from qualifying purchases.
2. Which links are affiliate links
Assume any link taking you to a retailer’s product page is one. Links between pages on this site are not, and neither are links to manufacturer documentation or to external references.
Affiliate links carry rel="nofollow sponsored noopener" — the machine-readable form of this disclosure. It is applied automatically when the page renders rather than typed by hand, so a link added later cannot ship without it.
3. What commission does not buy
- There is nothing to rank. We publish no “best of” lists, no rankings and no winners. Comparison pages describe where a category sits so you can place a product against it, and there is no position for a commission to move a product into.
- Categories are chosen before commission is considered. A category gets covered because keepers have a decision to make in it, and it gets a comparison page only if the specification data supports one.
- No manufacturer relationship exists. No sponsorship, no paid placement, no free equipment, no pre-publication review. Nobody outside this site reads a page before it goes live.
- Commercially inconvenient findings still get published. Where a category’s data will not support a comparison, the page says so — which makes that page less likely to send anyone to a retailer. It gets published anyway.
4. What commission pays for
Collecting and normalising specifications across whole categories takes time and infrastructure. Commission funds it. The realistic alternatives for a site like this are display advertising, which makes the pages worse to read, or sponsored placements, which would destroy the only reason to trust the pages at all.
5. How to avoid it entirely
Read everything here and buy wherever you like. Nothing is gated, no page requires a retailer click, and searching a product by name reaches the same listing with no commission attached. We would rather you used the comparison and bought elsewhere than not used it.
6. The limit this page does not relax
Commission means we have a commercial interest in you buying equipment. So this belongs here, on the page where that interest is disclosed, and not only on the technical pages:
No page on this site promises that any device will keep your livestock alive. We do not test this equipment and we keep no tank. A heater controller, a doser and a leak detector all sit between your animals and conditions that will kill them, and a specification describes what a device is built to do — not what it does when a probe drifts or a relay welds shut. Redundancy protects a tank in a way a spec sheet cannot. That is as true on the page where we disclose earning money as it is anywhere else.
Common questions
Do you earn more when a product is more expensive?
Commission is a percentage, so a larger purchase pays more in absolute terms. We make no recommendations, which is the structural answer — but the incentive exists and you should know about it, which is why it is written here.
Does clicking a link cost me anything?
No. The price is identical either way.
Do you accept free equipment from manufacturers?
No. There would be nothing to do with it — we do not test.
Is this disclosure enough for the FTC?
This page is the full statement, and it is summarised in the footer of every page, so the relationship is disclosed before you reach a link rather than after it.