# Tanklet: Idle Fish Aquarium — Breed & collect koi betta fish > Cozy idle aquarium game to breed, collect, and care for virtual fish. (iPhone/iPad app by Liwei Xie.) - Source: https://appshunter.io/ios/app/tanklet-idle-fish-aquarium/id6792056689 (this page in markdown: same URL + `.md`) - Developer: [Liwei Xie](https://appshunter.io/developer/1106616046) - Category: Games, Casual, Simulation - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 73 MB - Languages: American English, French (France), German (Germany), Indonesian, Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), European Spanish, Thai and 2 more - Released: 2026-08-03 - Data updated: 2026-09-01 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/tanklet-idle-fish-aquarium/id6792056689/reviews.md ## What is Tanklet? Tanklet is a cozy aquarium game where you raise a tank of fish that's truly yours. Feed them, clean the tank, keep the water healthy, and watch them drift through a beautifully rendered aquarium — all the joy and companionship of fishkeeping, none of the cost or mess. ■ Care for your fish Feed on schedule, clean the tank, and manage water quality. Well-cared-for fish stay healthy, happy, and earn more coins. Neglect them and they get listless or sick — but good care always brings them back. Your fish never die. ■ Rare visitors Wild fish drop by from time to time. Feed them, keep the water clean, and set out the decorations they love — treat them well and they may stay for good. The rarer the visitor, the pickier they are. ■ Personalities & bonds Every fish has its own personality. Greet them daily and serve their favorite treats to deepen your bond, unlocking little stories and rewards. ■ Collect & breed From clownfish, blue tang and angelfish to golden arowana and koi, collect distinctive species and fill your codex. Breed pairs for offspring, with a chance at rare variants and shiny fish. ■ Eggs with honest odds Hatch mystery eggs for new species — drop rates are disclosed before every purchase, with a pity system that guarantees rare finds. ■ Send fish on treasure hunts Pick 1–2 fish for expeditions to the reef, a shipwreck, or the deep abyss. Hours later they return with coins, decorations — sometimes even pearls. Strong bonds and healthy fish bring better luck. ■ Make the tank yours Buy and freely place plants, driftwood, rocks and more. Resize, restyle, and decorate your tank exactly how you like it. ■ More tanks, real ecosystems Save up for a second and third tank: freshwater, saltwater and coral ecosystems each boost matching fish. Every tank has its own theme and decorations, and fish can move anytime. ■ Ambient Mode: put your tank in a room Hide the interface and let your tank live in a warm little room. Nine rooms to swap — an indigo moon window, a brick loft, a green library, a coastal cottage… each room's light truly falls into the water. Keep the screen on and it becomes living furniture. ■ Grows while you're away Close the app and your fish keep you company while coins keep accruing. Come back to collect offline earnings and see what happened. ■ Calm, anywhere A Home Screen widget brings your tank to your desktop; soft water-sound ambience helps you unwind; iCloud keeps your tank in sync across devices. No ads, no third-party SDKs, zero data collection — your tank is yours alone. Subscribe to Tanklet+ for double coins, offline earnings extended 8→24 hours, auto-care while away, a monthly pearl gift, and exclusive decor. Slow down. Keep some fish. Privacy Policy: https://smartkiitos.com/tanklet/privacy/ Terms of Use: https://smartkiitos.com/tanklet/terms/ ## Key features - Breed and collect diverse fish species - Customize and decorate your aquarium - Care for fish with feeding and cleaning - Discover rare fish visitors - Send fish on treasure expeditions - Ambient mode for living room decor - Offline earnings and progress ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Tanklet+ Monthly | $1.99 | per month | | Tanklet+ Yearly | $14.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Handful of Pearls | $0.99 | one-time | | Pouch of Pearls | $1.99 | one-time | | Jar of Pearls | $4.99 | one-time | | Chest of Pearls | $9.99 | one-time | | Coral Reef Decor Pack | $2.99 | one-time | | Vault of Pearls | $19.99 | one-time | ## Frequently asked questions about Tanklet ### Does Tanklet have ads? No, Tanklet is ad-free and does not contain advertisements. The developers emphasize a clean experience with no third-party SDKs or data collection. ### What fish can I collect in Tanklet? You can collect a variety of fish species including clownfish, blue tang, angelfish, golden arowana, and koi. The game also allows breeding for rare variants and shiny fish. ### Can I play Tanklet offline? Yes, Tanklet grows while you're away, and coins accrue even when the app is closed. You can collect offline earnings upon returning to the game. ### How do I get rare fish in Tanklet? Rare fish can visit your tank from time to time. Treating them well with food and decorations may encourage them to stay. You can also hatch mystery eggs, with drop rates disclosed and a pity system for rare finds. ### What are the subscription benefits for Tanklet+? Subscribing to Tanklet+ offers double coins, extended offline earnings (8 to 24 hours), auto-care while away, a monthly pearl gift, and exclusive decor items. ### What devices does Tanklet support? Tanklet is supported on iPhone and iPad devices. It also features iCloud syncing across devices. ### How often is Tanklet updated? The latest version is 1.3.1, last updated on August 31, 2026. While specific update frequency isn't detailed, the app has received updates since its release on August 3, 2026. ### Is Tanklet suitable for children? Yes, Tanklet has an age rating of 4+, making it suitable for younger players. The game focuses on gentle care and collection mechanics. ## Version history (last 5 releases) ### 1.3.1 — 2026-08-31 A new fish, and breeding mutations you can actually see. · New species: Red Swordtail — the freshwater classic trailing a crimson blade, now in the shop and the collection. · Mutant offspring: mutated fry now wear a clearly different coloration — unmistakable in the tank, in details and in storage — with a soft violet shimmer. The collection gains a “Mutant” slot for every species, and mutants you bred earlier are credited automatically. · Storage: tap any fish to see its details (name, species, stats, bond) — no more guessing who is who. The storage list has been redesigned to be cleaner. · Fixes: breeding no longer labels ordinary fry as mutations; fish away on expedition can’t be released or moved. Thanks for every bit of feedback! ### 1.3 — 2026-08-29 A new fish, and breeding mutations you can actually see. · New species: Red Swordtail — the freshwater classic trailing a crimson blade, now in the shop and the collection. · Mutant offspring: mutated fry now wear a clearly different coloration — unmistakable in the tank, in details and in storage — with a soft violet shimmer. The collection gains a “Mutant” slot for every species, and mutants you bred earlier are credited automatically. · Storage: tap any fish to see its details (name, species, stats, bond) — no more guessing who is who. The storage list has been redesigned to be cleaner. · Fixes: breeding no longer labels ordinary fry as mutations; fish away on expedition can’t be released or moved. Thanks for every bit of feedback! ### 1.2 — 2026-08-11 Multiple tanks & ambient rooms are here. · Multiple tanks: save up for a second and third tank — freshwater, saltwater and coral ecosystems, with matching fish earning more. Move fish anytime. · Ambient rooms: 9 swappable rooms for Ambient Mode — an indigo moon-window study, a brick loft, a green library, a coastal cottage, terracotta, a noir gallery… each room's light truly falls into the water. · Try before you buy: preview any room in Ambient Mode first, unlock the ones you love — or unlock them all at once. · Swipe between tanks in Ambient Mode; the room follows the tank. Each tank keeps its own decorations. · Fixes: visitors now stay in one tank, feeding no longer crosses tanks, expeditions no longer return locked decorations, and more. ### 1.1 — 2026-08-06 Ambient Mode is here — turn your tank into a piece of furniture. · Ambient Mode: hide every control and keep just the living water. Your tank sits in a warm room, lit from above by its rim light, with the screen staying awake — set it on your desk or nightstand and simply watch. · Wall clock: optionally show the time and date, turning Ambient Mode into a bedside clock. · Water sound: switch on a soft stream of water, fading gently in and out. · Reworked decorating: the inventory is now a drawer you can swipe down to close and up to open; new decorations land where you can see them and arrive already selected; the edit bar floats next to the piece you picked. · Algae on the glass: tap it and a sponge shows you how to scrub, with subtle haptics as you wipe. · Fixed a display issue on the visitor card. ### 1.0.1 — 2026-08-04 Thanks to our very first fishkeepers! All improvements from your feedback: · Decor packs now show their full item list — names and rarities — before you buy · Fixed: decorations a rare visitor loves could be missing from the shop · Purchases now show a loading state and can't be triggered twice · You can now rate Tanklet from Settings — if you enjoy your tank, a review means a lot! ## More apps by Liwei Xie - [NoDiary: Daily Mood Journal](https://appshunter.io/ios/app/nodiary-daily-mood-journal/id1412453660) - [Ainoya](https://appshunter.io/ios/app/ainoya/id1436905770) - [Second Brain - AI Memory Notes](https://appshunter.io/ios/app/second-brain-ai-memory-notes/id6760254340) - [Ashglow](https://appshunter.io/ios/app/ashglow/id6760643633) - [Fed? Pet Feeding Tracker & Log](https://appshunter.io/ios/app/fed-pet-feeding-tracker-and-log/id6760776848) - [Symptio: Symptom Tracker](https://appshunter.io/ios/app/symptio-symptom-tracker/id6761065369) All apps by Liwei Xie: https://appshunter.io/developer/1106616046 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*