I have used this product a couple of times, and yes i did the job. However, Any Bi-valve I had in the tank died with in 3 days. A Spiny Oyster, Several Flame Scallops, and a Pen Oyster. SO if you have any of these in your tank I highly recommend that you find another alternative. Since my Skimmer is working more effectivly, and I increased my Water Chang Regiment I have not had a problem.
Cure the Cause not the Symptom