<a href=showthread.php?s=&postid=15238160#post15238160 target=_blank>Originally posted</a> by rmyers3rd
Be careful with flatworm exit!! I used it this weekend and lost my lionfish and my bluejaw trigger. I vacuumed everyday for 6 days and took out a truckload of flatworms. I thought I had a big percentage of them gone but 15 minutes after the I added flatworm exit my tank was littered with flatworms. I couldn't vacuum fast enough. Did water changes and carbon changes. Lost my fish the next day. On the bright side though, there are no more flatworms to be found. Flatworn exit is a great product just make sure you aren't going to overwhelm your system when you use it.