Get the yellow out! Stop Yellow Algaecide is an excellent algae treatment that removes and prevents algae growth in swimming pools. Stop Yellow Algaecide eliminates several types of pool algae, including yellow and mustard algae.
  • Controls yellow algae and mustard algae deposits on any type of pool surface - gunite, vinyl, plaster, or fiberglass
  • Fast-acting
  • Dissolves immediately
  • Choose from a six-ounce bag or a two-pound container