I am investing more long term in Bitcoin but wanted to trade a bit on smaller coins i.e Ethereum etc.
Investment in bitcoin and ethereum is mostly one and the same. Ethereum is a altcoin, but it's not a same as like other altcoin. It had a unique features then other altcoin. The price of Ethereum itself say you the value over other altcoin. If you are not dependent of the invested money, don't withdrew that money. Just hold the ethereum till the next all time high. You will get huge portion of profit then in bitcoin.