Know your tank the way it already knows itself.

ChatGPT knows nothing about your tank. It gives the same generic answer to every hobbyist with your question. ReefMind has been building a profile of your system since the day you signed up — your livestock, your parameter history, your past problems, your equipment. That's the difference between a search engine and an advisor who's been watching your tank for months.

It can and will be wrong sometimes. We're transparent about this. The AI is a well-informed second opinion — treat it the way you'd treat advice from a knowledgeable hobbyist, not a biologist you'd trust with surgery. For anything involving medication dosing or irreversible decisions, verify with a test first. The AI will tell you the same thing.

Your notes are static. ReefMind reasons across everything simultaneously. When you ask about a pH dip, it's cross-referencing your last eight alk logs, your livestock list, your dosing schedule, and three past conversations you've had about similar patterns — in seconds. Notes don't do that.

Nothing is deleted automatically. You can download a full export of everything — parameters, livestock, dosing, treatments, sessions, photos — anytime from the Account page, not just after you cancel. After cancelling, you still have 30 days before data is scheduled for deletion. If you resubscribe within that window, your memory picks up exactly where it left off.

Yes, fully. Each tank profile is separate — saltwater reef, FOWLR, freshwater planted, cichlid tank, whatever you run. The AI knows which tank you're talking about from context, or you can switch explicitly. Parameter tracking, livestock inventory, health checks, and compatibility all work across any tank type.

Seven days, full access, card required. If you cancel before day 7, you pay nothing — no partial charges, no "processing fees." We require a card because this audience knows how to run a tank and we trust you to make a genuine decision within a week. If you don't cancel, your subscription starts on day 8.

Yes, from the Account page. One confirmation step, no retention flow, no "are you sure you want to leave your tank unprotected?" guilt screen. We think retention should come from product value, not friction. If you cancel and come back, your tank memory will be waiting.

An aquarium hobbyist. Not a VC-backed team, not a company that pivoted into aquarium software. Someone who got frustrated asking the same questions with zero context and built the thing they wanted to exist. That context shapes every product decision.

The species library and care guidance are compiled from established hobby references and cross-checked against common reef and freshwater keeping consensus — not generated wholesale by AI and not peer-reviewed marine biology literature. We don't cite a source on every entry today, and we're not going to pretend that's the same as a vetted database. Treat care notes as a solid starting point, not gospel — and always weigh AI or app guidance against your own test results and judgment, especially for anything that can't be undone.