Used in a shrimp tank Worked.
Cleared the shrimp tank of hydras and worms. I used 3/4 a package per day in my 20 gallon for 3 days with 25% water changes each day. Killed all of the hydras, planaria and other rando worms. Did not kill the pond snails  though. I took out my mystery snails and haven't put them back in yet (2 weeks after). Was afraid after seeing others say it killed their snails even a month after. I will likely wait 2 months to put them back.<br /><br />I don't think the shrimp liked it, but it didn't seem to hurt them. In a healthy shrimp tank it probably won't kill any.
Rating: 5 stars