I set up a 14 gallon freshwater aquarium in my office August 24, 2011. I had some mollys and an algae eater. Six all together. I added the chemicals that came with the aquarium kit to the water laid some "gravel" on the bottom and let the filter run for a couple of days and then took a water sample in to the pet store to have it checked. They said it was "perfect". I bought the fish and a some plants and a big rock for decoration and for the fish to play/hide in. The fish seemed to be doing ok although I did notice the water was getting cloudy. I called the pet store and they said that was normal - it just needed to cyle and would clear up in a couple of weeks. Last Friday I found the little algae eater dead and scooped him out. I took a 1 gallon bucket and scooped out a gallon of water and added a gallon of distilled water. Came in Saturday morning (yesterday) and all 5 of the remaining fish were caught in one of the plants that was right next to the heater - all dead. I took them back to the pet store along with a water sample and was told that the ph level was off the chart. I don't know what happened.