02/05/2026
Our new zebrafish (Danio rerio) are settling in nicely as the living foundation of our classroom aquaponics system here at the Scajaquada Creek Environmental Science Lab (SCESL).
Aquaponics is a sustainable system that combines aquaculture (raising aquatic animals) with hydroponics (growing plants without soil). The zebrafish produce waste rich in nitrogen compounds, which beneficial bacteria convert into nutrients that plants can absorb. In turn, the plants help filter and clean the water, creating a balanced, self-supporting ecosystem.
This system gives our students a hands-on model of real environmental science concepts, including nutrient cycling, ecosystem interactions, water quality, and sustainability. By observing Danio rerio and the plant system together, students can see how living organisms depend on one another and how carefully designed systems can reduce waste and conserve resources.
We’re excited to watch this ecosystem grow and to use it as a platform for student-driven research and environmental learning right here at SCESL. 🌎