Fish Tank by 155.io
A real coin sinking through a live aquarium · Coin drop in a live tank
No simulation here — an actual coin, actual fish, actual water. It drifts past pegs and swimming fish on its way down to one of several landing zones. Rounds run about 20 seconds, the fastest cadence in the 155.io catalog, with a 100× ceiling.
The 60-second rundown
- 1A real coin, a real tank. Every round drops an actual coin into a live aquarium — real water, real fish, real pegs. Nothing on screen is rendered; you are watching a physical object sink.
- 2No RNG under the hood. This is filmed live action, not a math model. A camera watches the coin fall and an AI tracks it to rest, so the result comes from real water drag and the fish moving through it, not a seeded number.
- 3One call: the landing zone. The whole game is a single position prediction. You name which of several zones the coin settles in, and where it lands decides how the round pays.
- 4~20s rounds — the fastest here. No other 155.io game turns over quicker. The ceiling sits at 100×, and the short cadence means a lot of drops in a short session.
How it differs from the CCTV games
Rush Hour and Snow Run count things crossing a line. Fish Tank asks where one sinking coin ends up.
| Aspect | CCTV games (Rush Hour / Snow Run) | Fish Tank |
|---|---|---|
| What you predict | How many objects cross a counting zone | Which landing zone a sinking coin ends in |
| The feed | Traffic or ski-slope cameras | One fixed camera over a live aquarium |
| What moves | Cars, skiers, snowboarders | A single coin, plus live fish and water |
| Source of variance | Time of day, weather, footage | Water drift, pegs, and swimming fish |
| Bet structure | Over/Under, Range, Exact Count | Position prediction |
| Top payout | 18× | 100× |
| Round length | ~55s | ~20s — the fastest here |
| Where it lives | CCTV-style feeds on 155.io | The 155.io live catalog |
The bet, and how it pays
One race, one call. Fish Tank keeps the betting simple and lets the water do the work.
Position prediction
Back the landing zone you think the coin will settle in. Where it comes to rest decides the round — the harder-to-reach zones carry the run toward the 100× ceiling, while the more likely spots pay less. It is one clean call per round, no sequences to build.
Playing Fish Tank
Fish Tank is live action, so there is no seed to reverse-engineer and no pattern in the water you can genuinely predict. Treat every drop as independent — where the coin landed last round tells you nothing about the next. What you can control is your stake and how fast you let the rounds go by.
Mind the cadence. At roughly 20 seconds a round, this is the fastest game in the lineup, so stakes add up faster than they feel like they do. Smaller bets keep you in more drops without burning through a bankroll in a handful of minutes.
The fish and pegs are the story. The whole reason a zone call can miss is the live obstacles — pegs deflect the coin and fish cross its path at the worst moment. That chaos is what stretches the payout toward 100×; it is also why no zone is ever a lock.
Read the RTP band, not a single number. The published return sits between 91.59% and 93.59%, and where a given round lands inside that band depends on the operator. Like every game in this lineup, the house edge is real and the ceiling is a ceiling, not an expectation.
Set a stop before you start. A 100× headline over 20-second rounds is built to keep you dropping. Decide your session limit in advance and let the fast rhythm work for you, not against you.
Where to play Fish Tank
Fish Tank runs on 155.io, the same operator network that carries Rush Hour and Snow Run. Since our verified casino list covers that network, the venues already running the CCTV games are where you will find this one too.