Way to tired to understand this!
Can I but these and go to bed?
Tetra Aquasafe
At times it is necessary to add tap water to the aquarium, as part of a water change or a top-up. Tap water is designed for human use, and therefore contains high levels of chlorine to kill germs. In addition, it may contain varying levels of toxic heavy metals. Both chlorine and heavy metals are toxic to fish, and will cause them long-term damage and stress. Leaving water to stand will not remove all of these factors, and so is not an alternative to using a water conditioner. AquaSafe works by instantly neutralising these harmful substances, and should be used every time new water is added to the aquarium. In addition, AquaSafe also reduces stress, promotes wound healing and protects against infection, and adds a protective coating to the fish.
Interpet Aqualibrium
A Physiological Salt for the Aquarium with built in pH buffer. Aqualibrium is a unique balanced formulation of essential physiological salts for promoting the health of freshwater fish, safeguarding against disease and stabilising water conditions, including the essential pH value. It is one of the aquarists most versatile water treatments and can be used in a variety of ways: (1) As a general aquarium tonic and mild pH buffer, (2) To help minimise the effects of stress on fish, (3) As a supportive measure when treating disease. Aqualibrium can be used in conjunction with any other of the Interpet aquarium treatments. In many cases, a supportive does of Aqualibrium will enhance the effectiveness of aquarium treatments