Solids question..?

my i just started my son on rice cereal and today he didnt feel like eating it, though i knew he was hungry.. he ate at 3 am, then at 7 i started feeding.. Anyways, he wasnt too interested in cereal today, so i tried apple sause and he loved it.. wouldnt take the cereal, but took half the gerber organic package of sauce.. But he still ate cereal.. Is this too much? He doesnt really turn away from the spoon or bottle.. i cannot really tell when he's had enough.. with a bottle, he starts fussing.. But after feeding him solids in the morning, i tryto give him a small bottle and he'll only drink MAYBE an ounce.. so should i cut back on the solids and put more in his morning bottle?