Hermit Safe 100 3 4 Fl has been a game changer for my aquariums. After I put it to the test, I noticed a significant improvement in the water quality. It effectively removes harmful substances and keeps the water clean and clear for my fish and aquatic pets.The best part is that it is easy to use and doesn't require much effort. The only downside is the price, but considering the benefits it brings, it is worth the investment. Highly recommended for all aquarium enthusiasts..See full review