anyone ever use this stuff or have problems with it? its cheap and i bought it from meijers (wal-mart). it is supposed to be safe for everything as is all colorants i thought. 2 different times that i know of that i've used this stuff (lightly) i've had fish turn up dead. coincodence? don't know but i'm not using it anymore. just wondered if anyone else has had a similar experience. thanks. matt.

MY POND: 50'X100' (1/8 ACRE) dug in 2006. get's deep quick with a trench dug in the middle that reaches 17' deep. i have aeration. i stock bluegill, bass, trout, and perch and couple crappie.