Adsorb ammonia, phosphorus and nitrogen in the water Remove bad odor Keep the water clear Stable the pH " Rinse the Zeolite soil, put them in the bottom of the aquarium and pour water gently. The color of the water will become muddy but it will be cleared in a few hours. It can be used solely or can be used with other soil or sands. Some brown color powder could stick to the aquarium but it can be removed easily. "h
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