If your AquaFarm is in a spot that receives very direct sunlight, this is great for the plants, but not the tank water. In this situation, consider putting a back panel over the tank side to prevent sunlight from hitting the water.
However, they are not an especially good way to track the welfare of your business as a whole. For a more comprehensive understanding of your overall businesses performance, a trailing 12 month (TTM or T12M) figure is more useful.
If a fund is at the top of the charts during several trailing time periods, it's more important than ever to ask questions about what kind of risks it might be taking rather than assuming the manager can keep up the winning streak.