Starting solids

My twins just started solids 2 days ago on their 6month birthday. Today for breakfast they finished off a 2 oz container...so 1 oz each. And have been eating almost the whole container since the beginning. I thought I've read they eat maybe a Tbls. In the beginning?! I feed them all their regular bottles and feed solids for breakfast and dinner. They ate 1 oz each and still wasn't acting like they we're done. Should I try stage 2 foods?