I know I might be repeating what others have told you already but rest assured, these pumps are very common in the Bitcoins market. The price will rise and fall and that's why it is so much more interesting. You need to hold on to your ETH. You've bought it at a considerably low price. Wait for BTC to rise up to 4.5k in a few months and sell your coins. ETH is a well stabilized cryptocurrency and it's future is bright. If you really need some profit, gamble and win few more at your own risk.