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I'll recommend the Open DEX OpenLedger.io. It may not have the same liquidity, but it's secure.

The interface looks the same as BitShares. Are these two related?

They are. If I'm not entirely wrong, bitshares is the platform while openledger is a DEX that uses the bitshares platform.
Openledger has many UIA like the Open.GRC, Open.BTC etc.

Please correct me if I'm wrong here anyone.

they prolly get that in trading fees in a week

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