No crypto currency is safe to invest right now other than Tether because it is the only coin is stay at these value,but every other cryptos fell upto 15%-30% so the crypto currency market is collapsed right now.I hope these situation will be back to normal when the clear news about regulation in some countries until that lot of rumors and fake news are created against bitcoin.
The only thing we have to do right now is just hold the coins as it is and if you can buy,buy more potential crypto currencies which soon will bump at the back end of this year.But this awful run may continue for a little while so investors don't get panic and sell your holdings.