FishBitFish is a bitcoin game that is a mix of both luck and skill. All you have to do is choose either the red or green fish to send your bitcoins to, and at the end of the round the fish with the most bitcoins wins. Sounds simple, but there are a few tricks to it.
There are 4 rounds per day which start every 6 hours at 6am, 12pm, 6pm, and 12am UTC, but the actual times for your timezone are shown in the help page. To select a fish you must bid by sending money to the bitcoin address for the corresponding fish – red or green. As bids are received, the amount is displayed so you can see which fish will win if no more bids are received.
The most important thing is to make sure you understand how the fees work. A fee is deducted from your bid when it is received based on the time it was received. The fee starts at 0% and goes to 50% at the end of the round. Basically, the earlier you bid, the lower the fee. The minimum bid is 10,000 satoshi, but keep in mind the fee is deducted from the bid so your bid must be high enough or you’ll lose your bitcoin instantly.
The amount you win comes from the bids placed on the losing fish, and is based on how much you bid. If your bid is 10% of all the winning bids, then you will win 10% of all the bids from the losing fish. You also get your initial investment returned, as well as a 10% share of the jackpot. There is a handy calculator under each fish which shows how much your fee is and how much you could win.
The site actually says to choose the fish you would like to invest bitcoin in, but I would classify this as a way to gamble bitcoin. In any case, FishBitFish is a fun little bitcoin game, and the fish images are pretty cool.
So, enjoy, and remember not to gamble bitcoin you can’t afford to lose.