This research studied the performance of appropriate fertilizer on growth of feather algae to commercially leverage by dividing the trial is not a trial Kit 1 fertilizer for use as controls and use 2 different fertilizers. Fertilizer formula 15-15-15 and 0-60-0 fertilizer formula making a 15-day time trials are taken every day of the 5 water experiments. I found that the fertilizer formula 15-15-15 with the growth in weight after drying is one of the best, that is equal to 1.47 ± 0.18 second is don't put fertilizer which is equal to 0.95 ± 0.11 and fertilizer bills 0-0-60, which is equal to 0.91 ± 0.15 by the growth rate of the weight after drying there is a significantly different statistical. (P