Cardio question is it health or not?

so i plan on working out two hours 5 days a week. i got to ride my bike home tho from the gym. my house is about 2 miles away from the gym not to far. thats about 30-40 minute ride home. so all togeither thats 2hours and35 minutes. so my question is. i plan on working on the tredmill for atleast a half hour every day im there. would that be to much cardio or do you advice mor? im trying to lose weight and build muscle.