Forgot another:
Water Lettuce: Resiliant. Long hanging roots are too tempting for fish to pass up, but the plants seem unconcerned when they get chomped off. Mine go through cycles of getting massacred, then miraculously recovering and multiplying from only a handful of pods.
Just as a overall summary, I'd have to say that presenting the fish with variety has helped in my case. If they have lots of new toys, it's less likely that any one toy is going to get broken.
Water Lettuce: Resiliant. Long hanging roots are too tempting for fish to pass up, but the plants seem unconcerned when they get chomped off. Mine go through cycles of getting massacred, then miraculously recovering and multiplying from only a handful of pods.
Just as a overall summary, I'd have to say that presenting the fish with variety has helped in my case. If they have lots of new toys, it's less likely that any one toy is going to get broken.