Aquarium Changes

Overtime an ecosystem changes and it doesn’t have to be drastic. My fish tank has changed over the past eight weeks. The nitrate levels have gone up, then down, and up again. The ammonia levels for the most part stayed constant at 0.25ppm. The temperature was always around 80 degrees Fahrenheit. My partner and I really didn’t make any changes to our aquarium. The fish at first did not get along really well, but as the weeks went on they grew to like each other. Throughout the eight weeks there was not much algae growth. There may have been a little, but not a major change. The plants, however, changed a lot. They had plenty of leaves and were straight up in the tank. After weeks had passed, the leaves grew less and they gravitated towards the sunlight. When we put the organisms in the tank they immediately hid and then we couldn’t find them afterwards. The water level even dropped at the seventh week. Other than that, our tank didn’t change much. The water stayed clean and healthy for the fish.