I wonder when the whole market dyed red but BCH increased sharply and the price of BTC fell sharply. Shark want everyone sell the BTC to buy BCH, then the shark will harvest the BCH and increase the BTC again.
Should I sell BTC now??
This exact scenario happened weeks ago that pushed Bitcoin Cash's price to 1,200+ USD. After a few days, Bitcoin began climbing again while Bitcoin Cash had its correction but recovered quickly. The price of BCH stabilizes and increased as well. The scenario last time will happen again and might happen again in our current scenario.
I suggest that you must hold your BTC for now and wait for it to increase in value before converting it to BCH.