Recently my biology class has made two-liter pop bottles into self-contained ecosystems. AP Biology will be doing this today and tomorrow. What is the point? We are trying to visualize how the earth is truly a closed system and that nutrients flow in a cyclic matter. Aside from an unknown students adding packing peanuts to a pair of girl's project.. it has gone very well. It well until we started to look at the fish and how they interact.
I had found two sweet little pond fish that couldn't have been bigger then a quarter. I thought these sweet little fishies should go into the aquarium where they could feel safe. I had no idea they were killing machines. These two fish single handedly.. or would it be finedly?!?!.. wiped out our guppy population. Sweet fish my foot! Keeping this in mind it will be very interesting to see how these fish behave in a small closed ecosystem
As I was searching articles I found this one that says that aquarium fish are agressive.Aggressive Fish Apparently my Guppies didn't get the memo! What are your experiences with fish? Do you find them to be more or aggressive then native species?
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