Saving is one of the options available to a income earner. These savings can be left idle in banks yielding minimal returns, which is not the best. Investments in ICO is recommended.The higher the risk associated with a venture the higher the returns. leaving money in fixed deposits is not the best.
I think you should allocate another percentage of your earnings for crypto investment. Emergency funds should be easily accessible and always available to you in difficult times so you do not have to invest the money into something that can delay you from accessing it when something urgent needs funds.
When we talk about emergency funds, money should always be ready in times of emergency so you do not have to put it in a time deposit like your account so you have easy and quick access to your funds. I do not advise your emergency fund to be invested in a good crypto because its value is highly volatile and you do not want to compromise your emergency fund losing value over time.