hey guys those who dont knwo im currently running my first cycle and everythings going great

neways i currently have a mate whos running a cycle aswell

hes 4 weeks through, its his second cycle

hes running 600mg test ethanthate
400mg tren ethanthate

IMO i told him its to high, but not being a steroid guru and lack of info n the internet i cant seem to find a link that i can advise him on a lower dose

am i right its 2 high?
i originally told him not to run tren for second cycle, but hes stubborn obviously, hes accepted he might be running to high of a dose since hes having problems sleeping, can someone tell me a good dosage for tren eth?