Kailua-Kona-based Cyanotech Corp. (Nasdaq: CYAN) on Friday reported net income of $99,000, or 2 cents per diluted share, for the quarter ending Sept. 30 compared with net income of $14,000 or zero cents per diluted share from last year’s comparable period. The microalgae-based nutrition and health products maker reported net sales of $9.8 million for the quarter, an increase of 16 percent from the $8.5 million it reported for last year’s second quarter. The company also reported gross profit…