Pack Checker (TH) 5 packs



TH (Total Hardness of water) is the sum of some multivalent cations, such as calcium ions, in water.  When the TH level is high, the color of new leaves starts fading and the growth of the plants is disturbed. Please always check the level of TH after setting new stones or gravels in your aquarium.

Article Code Item  
103-202 Pack Checker TH 5 packs  


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