I would say that the time on investing to altcoin should depend on the market situation. Altcoins are mostly less stable than Bitcoin. As such, investing would be more risky especially if the market is on downtrend. What we are seeing at this moment simply explains what I am pointing out. At this moment, cryptomarket is at its deepest and at the same time, investment on projects are most cryptos do result to profit loss due to the influence of the situation into cryptoactivities.