This submersible, refillable dispenser uses a natural bacteria and enzyme blend which reduces excess nutrients, sludge and ammonia, resulting in improved water quality and clarity for your aerated fish tank or aquarium. A patented timed-release system incubates and releases beneficial bacteria and enzymes 24 hours a day, 7 days a week, over a 30-day period. Treats up to 50 gallons. Being all-natural, you can't overtreat. Safe for fish, humans, pets and plants. After 30 days, simply replace the refill packet. May require 4-6 weeks to achieve water quality improvement. Includes 2 packets for 60 days of treatment. Additional packets are sold separately. Made in USA.
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