Activated carbon has long been used for filtration media when
super clean water is desired. Carbon has the natural ability to
absorb high amounts of organic
solids as chemicals or pesticides
that may go into pond water.
Carbon will also absorb medications
used on fish. After treatment
is complete, add carbon to tank or
pond to remove left over chemicals
or medications. Activated
carbon has also been shown to
have the ability to remove tannins
that cause “tea-colored” water. Barley straw is another product
that can discolor water. Carbon will also remove this color. Use
approximately 11/2 cupfuls for every 100 gallons of pond water.
Place in mesh bag (see page 12) and set in moving water (in a
pond skimmer or AquaFalls is a good location). Replace carbon
every four to five weeks as needed.