1 of 2 people found the following review helpful
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This review is from: Tetra Aqua Safe Water Conditioner, 500 ml (Misc.)
Easy to use via measuring top doubling up as stopper. Fish are healthy and as far as I can tell happy with their environment. Tap water may be ok for human consumption but different minerals and purification agents as well as natural acidity of the water could potentailly harm the delicate membranes/eyes of the fish. This conditioner claims to neutralise all the above and more. Seems to work. Very pleased with the product.