Newbie here and I want to start trading soon. Just want to get tips on when to invest on btc and eth. thanks in advance! 
You must buy bitcoins right now because you will get the bitcoins cash BCH after bitcoin's hard fork be done, it will gives extra coin and profit with easy way just wait for 24 hours but if you don't buy bitcoins right now this chance will be gone and the time to buy ethereum is right now too, because after bitcoin's hard fork, price of ethereum will be more expensive too.