I built an aquarium that is, by observation, a sufficiently stable ecosystem that it can go without maintenance for a month with no apparent degradation.
Also I convinced a fire eel to curl up in my hand while waiting for earthworms.
I built an aquarium that is, by observation, a sufficiently stable ecosystem that it can go without maintenance for a month with no apparent degradation.
Also I convinced a fire eel to curl up in my hand while waiting for earthworms.