KEY POINTS
  • Price drops do not mean "the end of bitcoin," says Brian Kelly.
  • The digital currency hedge-fund manager has three tips for investing in the volatile asset.

Market watchers should invest in bitcoin now that prices are down, says BK Capital Management founder Brian Kelly.

"Now, when everyone is saying ... it's over, that's it, bitcoin is dead, for the 175th time. Now's the time you start looking at it, on the buy side," Kelly, portfolio manager of the BKCM Digital Asset Fund, told CNBC on "Fast Money" Tuesday.