Blackwater Extract (8.45 oz) Blackwater Extract contains trace elements, vitamins, and extract of peat. It replicates
blackwater conditions by creating clear, “natural,” Amazon-biotope conditions in the
aquarium. Blackwater Extract promotes fish activity levels and is an excellent conditioner
for all soft-water fish including discus, angelfish, tetras, and killifish. Two teaspoons treat
10 gallons.
