Stone for Aquariums, Medium – Natural Water Clarifier and Odor Remover, Treats 15 to 40 Gallons

Customers report that the EcoBio-Block stone works well in 14-gallon aquariums, helping to clear water within 5 days, remove ammonia, and stop algae blooms. The product receives mixed feedback about its appearance, with some saying it makes their tanks look great while others find it unattractive. While some customers say it’s worth the money, others consider it a waste of money, and experiences with fish health are mixed, with some reporting healthy fish while others experienced fish deaths. The water clarity and smell reduction aspects also receive mixed reviews, with some customers reporting clear water while others say it made their water cloudy.