I just thought I'd update this thread with some results. The Dr. Tim's started the pond cycling after about two or three days, which is pretty good, considering I only used a little over half of what was recommended for the total volume of the pond. One thing I'm noticing with Dr. Tim's is a marked daily change in my ammonia, nitrite and nitrate levels. At this point, ammonia is almost completely gone (around .25). Nitrite levels are through the roof. I even have some nitrate (around 10 or 20). It's been ten days since I added the Dr. Tim's, and rather than seeing ammonia spike, then waiting for nitrite to spike, then waiting for nitrate, I'm seeing each move along more quickly than I believe I would have if I hadn't added the Dr. Tim's. The fish are showing some signs of wear, but I am monitoring closely. My red tail has a frayed tail for the first time in his life, but I know I'm close to the end, and tails heal. If anyone was ever thinking about buying Dr. Tim's, I would definitely suggest it. I can imagine if I'd had the extra couple of hundred bucks to spend, and dosed like I should have, my results would be happening even faster. So, I give a "thumbs up" to Dr. Tim's One-And-Only.