The only thing that will get rid of the chloramine and heavy metals, is the dechlorinator. Many (or probably most) of us here in the UK use
Stress Coat.
Info directly from the
API website:
Stress Coat®
Purpose and Benefits:
Stress Coat forms a synthetic slime coating on the skin of fish, replacing the natural secretion of slime that is lost during netting, handling, shipping, fighting and other forms of stress. Stress Coat is a water conditioner suitable for fresh and salt water aquariums, water gardens and ponds. Stress Coat contains Aloe Vera, which acts as a liquid bandage, to protect and heal damaged fish tissue. Stress Coat instantly removes chlorine and heavy metals such as copper and zinc from tap water. Stress Coat also removes chloramines by breaking the chlorine-ammonia bond.
The effectiveness of Stress Coat with Aloe Vera has been proven by independent studies conducted at the University of Georgia, School of Veterinary Medicine. Researchers found that Stress Coat helped heal wounds and speed tissue regrowth. Dr John Gratzek summarizes the results: "Personally, I am satisfied with the results since my initial thoughts were skeptical to say the least. These definite statements can be made without equivocation: Stress Coat in no way harms aquarium fish, alters pH, or affects the biological filter. No ammonia or nitrite was detected in the test aquariums. The results indicated that the Stress Coat formula reduced the wound size compared to untreated fish tissue." Aloe Vera is high in mucopolysaccharides, an essential component of many tissues and believed to help in the healing process. The glycoproteins Aloctin A and Aloctin B are also present and identified as the probable tissue-healers.
Directions for Use:
Each dose of Stress Coat removes 3.0 ppm chlorine and 0.3 ppm heavy metals.
To protect fish and condition water:
Add two teaspoonfuls (10 ml) for every 10 U.S. gallons of aquarium water.
To remove chlorine and heavy metals and neutralize chloramines:Add one teaspoonful (5 ml) for every 10 U.S. gallons (40 liters) of tap water.
For tropical fish use only. Do not use on fish intended for human consumption.
Compatibility:
Stress Coat can be used with freshwater tropical fish, marine fish, invertebrates and coldwater species including koi and goldfish. Stress Coat will not harm aquatic plants. Stress Coat may cause foaming in marine aquariums using a protein skimmer. Stress Coat will not interfere with water test kits.