UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    Form 8-K

                 Current Report Pursuant to Section 13 or 15(d)
                     of the Securities Exchange Act of 1934

                                October 30, 2003

                Date of report (Date of earliest event reported)

                              Cyanotech Corporation

             (Exact name of registrant as specified in its charter)



           NEVADA                      000-14602              91-1206026
 (State or other jurisdiction   (Commission File Number)     (IRS Employer
       of incorporation)                                  Identification Number)



       73-4460 Queen Kaahumanu Highway, Suite #102, Kailua Kona, HI 96740

                    (Address of principal executive offices)

                                (808) 326 - 1353

                         (Registrant's telephone number)

                                 Not Applicable

          (Former name or former address, if changed since last report)



Item 12  Results of Operations and Financial Condition

         Attached hereto as Exhibit 99.1 and incorporated by reference herein
         is financial information for Cyanotech Corporation for the quarter
         ended September 30, 2003 and forward-looking statements as presented
         in a press release of October 30, 2003. The information in this report
         shall be deemed incorporated by reference into any registration
         statement heretofore or hereafter filed under the Securities Act of
         1933, as amended, except to the extent that such information is
         superceded by information as of a subsequent date that is included in
         or incorporated by reference into such registration statement. The
         information in this report shall not be treated as filed for purposes
         of the Securities Exchange Act of 1934, as amended.





                                   Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                               CYANOTECH CORPORATION
                                   (Registrant)


October 30, 2003               By:  /s/ Jeffrey H. Sakamoto
                                    --------------------------------------------
                                    Jeffrey H. Sakamoto
                                    Vice President - Finance & Administration
                                    (Principal Financial and Accounting Officer)





                                                             EXHIBIT INDEX


Exhibit Number       Description
--------------       -----------

     99.1            Press release dated October 30, 2003.