I had a 30,000 share order bid sitting at $.0165.

I had a 30,000 share order bid sitting at $.0165. Too large of a spread and too large of a bid size so I went to 30,000 shares at $.0166. It wan't going thru even though the printed price went to $.0165 with my order in at $.0166. I the noticed the bid moved to $.0166 x 25,000. Still nothing. Desperate to get shares I moved to buy 28,500 at $.0171 above their ask price of $.0170. Order filled at $.0170.