Tetra Barley and Peat Extract For Ponds 16.9-oz.

Tetra's Barley & Peat Extract offers the same benefits as barley bales, but in a much more convenient and mess-free form. The humic acid it releases prevents algae and allows you to have crystal clear water while also softening the water.

Safe to use with fish and plants. Not recommended for use with invertebrates.

One 16.9 fl oz (500mL) treats 2,500 gallons (9,460 L).