K.W.
You've already gotten some great advice. I agree with the others - let him take his time. Six months is the minimum age, but many babies are not even close to ready that young.
I pushed my first and we started way too early. As a result he had some skin issues.
My second wasn't into solids until he was close to 9mos.
The third was pretty interested around 6mos, but he has always preferred finger foods to baby food.