Basically, there are two types of water purifiers – chemical and physical. The main active ingredients of chemical purifiers are chelates. They primarily bind the chlorine and heavy metals contained in tap water. After binding, harmless compounds are diluted or removed during the next water change, depending on the amount of water changed. Chemical water purifiers are transparent and do not cloud the water.
Physical water purifiers are zeolite based. Their minerals have a microporous structure. Unwanted substances such as chlorine, heavy metals and ammonium settle in the tiny pores and gradually sink to the bottom or are retained by the filter. One advantage of purifiers is that they can rarely cause an overdose. In addition, the porous surface of zeolites provides an optimal habitat for beneficial bacteria. Physical water purifiers are milky and initially cloud the water. However, after a few hours, the water becomes clear by itself. Important: Shake the liquid well before use.
Water purifiers for aquariums not only remove harmful substances, many products also contain vitamins and trace elements that help to keep the fish healthy. Additives such as aloe vera protect the mucous membranes of the aquarium inhabitants. Natural products such as Indian almond bark also act as an optimal supplement. The humic acid contained in the bark inhibits the growth of undesirable bacteria and the bark offers retreats for small fish, shrimps and snails.
