We fed them pretty well; I've never heard of Triops that weren't cannibalistic.
The Hydrae are exceptionally interesting, we just collect glass jars of lake water and watch them grow over a few weeks before releasing them .. its quite an adventure watching the budding occur, seeing the growth, watching the nematodes being chomped on ..
In our hydrae experiments, yes, they came with the lake water .. you can see some pictures here if you're interested, there's a video of the battle between nematode and hydra as well - I did this experiment with my kids many times over the years, its always fascinating to see what grows and what eats and what stays behind ..
The Hydrae are exceptionally interesting, we just collect glass jars of lake water and watch them grow over a few weeks before releasing them .. its quite an adventure watching the budding occur, seeing the growth, watching the nematodes being chomped on ..