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Why FixFishTank
Say it however it comes out — a photo, a 5-gallon betta tank, a planted 20 losing leaves, a number you’re not sure about. Tonight’s step comes back in plain words, not a lecture.
The diagnosis, the plan, the shopping list, the upkeep — it builds as you talk, free to read or download a copy. Your tank’s own record saves to your account; no forms to fill in.
Tell us what matters — cost, how it looks, how much work it is, how big your tank is — and we’ll say which of those the data can actually compare. Give us a budget and we only show what fits.
Start from your situation
Illustrative situations, fictional people, example numbers — not real reviews.
Priya Raman
5 gal · Betta “George” · Week 6
“One small water change tonight, no medication, re-check in 48 hours — and exactly what to watch so I could stop hovering. The white edge never advanced. First fish advice that let me sleep.”
Marcus Webb
10 gal · tank home 3 days · no fish yet
“I got the don’ts, not a shopping list — and the don’t I was closest to breaking was adding fish this week. Waiting costs nothing. Nobody had told me that straight before.”
Sean O’Malley
40 gal secondhand · saltwater → freshwater · Week 3
“Three items, $27.47 — under my $40 cap — and it said out loud what cheap costs me: no water polishing, floss forever. Zero upsell. That’s the whole answer I wanted.”
Camila Ferreira
20 gal planted · yellow leaves · Week 7
“It was feeding, not light — one complete fertilizer, two weeks, and photograph the green leaf, not the mustard one. It even told me what not to buy yet. My kind of answer.”
Rafael Costa
29 gal · fishless cycle · Week 2
“It read my whole panel, not just the 0.25 — mid-first-stage, the nitrite row as evidence, and the 48-hour test that separates progress from a stall. My sheet finally has the row it was missing.”
Diane Foster
55 gal · fully on timers · Week 10
“One missed timer, and I got the truth: reset it and watch — don’t replace it. Most places would’ve sold me a new timer already. It told me what I actually needed: whether to worry.”
From the community
Quick answers
Real products, real prices — nothing invented, nothing low-rated. We compare options on the trade-offs that matter for your tank, and if we can’t back a pick with a number we say so instead of guessing. No paid placements.
1,600+ real products across 20 categories — filters, heaters, lights, tanks, substrates, test kits, food, and more — each screened before it entered the catalog. From a 5-gallon betta tank to a reef setup — if we don’t carry it, we’ll tell you and point you to it.
A general AI can troubleshoot a tank only if you steer it and double-check every product it names. We already did that work — 1,600+ pre-screened products with structured specs (catalog snapshot · Oct 2026), water-reading and photo interpretation built in, and local store lookup.
Yes — free, no ads, no premium tiers, no data selling. We earn a small commission when you buy gear through our links, at no extra cost to you.
Every pick links to Amazon — you buy on their site; they handle shipping and returns. Prices are dated, never live, and you see what it costs before you click.
Works on desktop and mobile — no app needed. Create an account in 10 seconds; your chats and tank profile are saved automatically.
Yes — share a private link, or toggle it Public to list it on our Community page. Public means findable on Google, so it isn’t fully reversible.
Yes — anywhere in the world. Readings, photos and chat work globally, and store lookup covers the US, Canada, UK, Australia and New Zealand. Gear ships from Amazon US to many countries.
Just say “send feedback” in chat — it writes the email for you. Or email [email protected] and a human will pick it up.