So I am planning on putting 500 euros on Eth and Btc each(1000 in total) to hold for long term. Is it a bad time to invest in those crypto-currencies?
Well it is always rational for one to invest in Bitcoin when its market value is on the decline trends so as to maximize profit when it later increase. I will advise you to wait for a while for the might be a decline soon. But that of ethereum I cannot advise you though since its value fluctuate as Bitcoin fluctuations both upward trend and downward trend.