Best time to buy is when the market is bleeding too much,but as far as i can see these bloody reds arent yet profitable because the coins are still good though most of them are down,we still doenst have a 30% off from the value of each coins yesterday so i wont be so sure about this correction because it seems to be normal to me.
Because the market right now is red its time to buy more coin because is cheap and affordable. We can hold that coin for long term so that when the time will come when the market price will back in its price in rissing in a high value, that is the right time that we are waiting for, we sell our coin. And we are very we can have get more profit.