About reefnotes
One developer, a few tanks, and a logbook that got out of hand.
Who builds this
I'm Rafael — a software developer, and an aquarist for longer than I've been paid to write code. reefnotes started as my own Sunday ritual: test the water, write it down, wonder whether that nitrate reading is really climbing or whether I'm imagining it again. I keep a few tanks myself, planted and stocked, and every feature in the app exists because one of them needed it first.
Who writes the guides
Every guide and parameter page is written by me and checked against what my own tanks actually do — the water-change math, the KH drift, the cycle timelines. Manfred and Stormy, the two snails you'll meet around the site, narrate; they don't invent. Where a number comes from the literature rather than my logbook, the guide says so.
How it's funded
It isn't, and that's deliberate. reefnotes is free, ad-free, and doesn't sell data — it's a hobby project run alongside my studio work at foxigit.com. No marketplace, no affiliate links dressed up as advice, no paywall. If you want to chip in for server costs, there's a voluntary PayPal link on the homepage — that's the whole business model.
Get in touch
Found a mistake in a guide? A number that doesn't match your tank? Tell me — the contact details are in the imprint, and there's a feedback box inside the app.