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You can check out BITMEX where you can trade a lot of contract types for the wide range of crypto currencies both futures and spot-like. You can exercise there both no-speculative and/or high speculative trading strategies with leverage up to x100. Bloomberg-style web terminal allows comfort manual trading while state of art API provides possibility for you to employ automatic trading algos. BTW they provide you with the free trading robot if you are fan of robo-trading :) What is more important, they have a testnet server, where you can get used and test the platform. To start there is really simple, see how to deposit free bitcoins to your testnet account below. Short overview or BITMEX trading strategies see at (http://zentrade.online/bitmex-trading-strategies/). Good luck!

Cannot put youtube link into commentary correctly, so here is the link how to deposit free bitcoins to your testnet BITMEX account:
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