BTC crashes because of more chinese bullshit (whatever the government says good or bad, is used by traders to crash the price and buy cheaper then pump higher later on, so it's a good time to buy BTC)
But one would expect that the altcoins make a rise when this happens, we have seen that to the contrary, most alts are red, few a re sightly green... stupid ass Ripple is the one that pumped lol.
It is true that when the price is crashing in bitcoins some coins are rising and the main coins are rising but some shit coins are also rising but dont take them in conclusion to invest as they are just pump and dump coins. coins like ETH, DOGE, which are worthy to buy in this decline price of bitcoin