All the altcoins have been rising way too fast in January and there were not any true support levels for them. It was due for a price correction. But I think that the price correction have almost finished and it would rise back in the weeks to come. Most likely, Chinese players are selling their alts and BTC for cash to use them during Chinese New Year. After CNY, prices would pick up again when the Chinese returns to the game. So what if China uses the great Firewall to block Crypto related websites. There is something called a VPN.